O (part 1)

1. O, the fifteenth letter of the English alphabet, derives its form, value, and name from the Greek O, through the Latin. The letter came into the Greek from the Phoenician, which possibly derived it ultimately from the Egyptian. Etymologically, the letter o is most closely related to a, e, and u; as in E. bone, AS. ban; E. stone, AS. stan; E. broke, AS. brecan to break; E. bore, AS. beran to bear; E. dove, AS. dufe; E. toft, tuft; tone, tune; number, F. nombre. The letter o has several vowel sounds, the principal of which are its long sound, as in bone, its short sound, as in nod, and the sounds heard in the words orb, son, do (feod), and wolf (book). In connection with the other vowels it forms several digraphs and diphthongs. See Guide to Pronunciation, §§ 107-129.

2. Among the ancients, O was a mark of triple time, from the notion that the ternary, or number 3, is the most perfect of numbers, and properly expressed by a circle, the most perfect figure. O was also anciently used to represent 11: with a dash over it (O O, n.; pl. O's or Oes (.

1. The letter O, or its sound. "Mouthing out his hollow oes and aes." Tennyson.

2. Something shaped like the letter O; a circle or oval. "This wooden O [Globe Theater]". Shak.

3. A cipher; zero. [R.] Thou art an O without a figure. Shak.

O'
O', Etym: [Ir. of a descendant.]

Defn: A prefix to Irish family names, which signifies grandson or descendant of, and is a character of dignity; as, O'Neil, O'Carrol.

O'
O', prep.

Defn: A shortened form of of or on. "At the turning o' the tide."
Shak.

O
O, a. Etym: [See One.]

Defn: One. [Obs.] Chaucer. "Alle thre but o God." Piers Plowman.

O
O, interj.

Defn: An exclamation used in calling or directly addressing a person or personified object; also, as an emotional or impassioned exclamation expressing pain, grief, surprise, desire, fear, etc. For ever, O Lord, thy word is settled in heaven. Ps. cxix. 89. O how love I thy law ! it is my meditation all the day. Ps. cxix. 97.

Note: O is frequently followed by an ellipsis and that, an in
expressing a wish: "O [I wish] that Ishmael might live before thee !"
Gen. xvii. 18; or in expressions of surprise, indignation, or regret:
"O [it is sad] that such eyes should e'er meet other object !"
Sheridan Knowles.

Note: A distinction between the use of O and oh is insisted upon by some, namely, that O should be used only in direct address to a person or personified object, and should never be followed by the exclamation point, while Oh (or oh) should be used in exclamations where no direct appeal or address to an object is made, and may be followed by the exclamation point or not, according to the nature or construction of the sentence. Some insist that oh should be used only as an interjection expressing strong feeling. The form O, however, is, it seems, the one most commonly employed for both uses by modern writers and correctors for the press. "O, I am slain !" Shak. "O what a fair and ministering angel !" "O sweet angel !" Longfellow. O for a kindling touch from that pure flame ! Wordsworth. But she is in her grave, — and oh The difference to me ! Wordsworth. Oh for a lodge in some vast wilderness ! Cowper. We should distinguish between the sign of the vocative and the emotional interjection, writing O for the former, and oh for the latter. Earle. O dear, and O dear me! Etym: [corrupted fr. F. O Dieu! or It. O Dio! O God! O Dio mio! O my God! Wyman], exclamations expressive of various emotions, but usually promoted by surprise, consternation, grief, pain, etc.

OAD
Oad, n.

Defn: See Woad. [Obs.] Coles.

OAF
Oaf, n. Etym: [See Auf.]

Defn: Originally, an elf's child; a changeling left by fairies or goblins; hence, a deformed or foolish child; a simpleton; an idiot.

OAFISH
Oaf"ish, a.

Defn: Like an oaf; simple.
— Oaf"ish*ness, n.

OAK
Oak, n. Etym: [OE. oke, ok, ak, AS. ac; akin to D. eik, G. eiche,
OHG. eih, Icel. eik, Sw. ek, Dan. eeg.]

1. (Bot.)

Defn: Any tree or shrub of the genus Quercus. The oaks have alternate leaves, often variously lobed, and staminate flowers in catkins. The fruit is a smooth nut, called an acorn, which is more or less inclosed in a scaly involucre called the cup or cupule. There are now recognized about three hundred species, of which nearly fifty occur in the United States, the rest in Europe, Asia, and the other parts of North America, a very few barely reaching the northern parts of South America and Africa. Many of the oaks form forest trees of grand proportions and live many centuries. The wood is usually hard and tough, and provided with conspicuous medullary rays, forming the silver grain.

2. The strong wood or timber of the oak.

Note: Among the true oaks in America are: Barren oak, or Black-jack,
Q. nigra.
— Basket oak, Q. Michauxii.
— Black oak, Q. tinctoria: — called also yellow or quercitron oak.
— Bur oak (see under Bur.), Q. macrocarpa; — called also over-cup
or mossy-cup oak.
— Chestnut oak, Q. Prinus and Q. densiflora.
— Chinquapin oak (see under Chinquapin), Q. prinoides.
— Coast live oak, Q. agrifolia, of California; — also called
enceno.
— Live oak (see under Live), Q. virens, the best of all for
shipbuilding; also, Q. Chrysolepis, of California.
— Pin oak. Same as Swamp oak.
— Post oak, Q. obtusifolia.
— Red oak, Q. rubra.
— Scarlet oak, Q. coccinea.
— Scrub oak, Q. ilicifolia, Q. undulata, etc.
— Shingle oak, Q. imbricaria.
— Spanish oak, Q. falcata.
— Swamp Spanish oak, or Pin oak, Q. palustris.
— Swamp white oak, Q. bicolor.
— Water oak, Q. aguatica.
— Water white oak, Q. lyrata.
— Willow oak, Q. Phellos. Among the true oaks in Europe are: Bitter
oak, or Turkey oak, Q. Cerris (see Cerris).
— Cork oak, Q. Suber.
— English white oak, Q. Robur.
— Evergreen oak, Holly oak, or Holm oak, Q. Ilex.
— Kermes oak, Q. coccifera.
— Nutgall oak, Q. infectoria.

Note: Among plants called oak, but not of the genus Quercus, are:
African oak, a valuable timber tree (Oldfieldia Africana).
— Australian, or She, oak, any tree of the genus Casuarina (see
Casuarina).
— Indian oak, the teak tree (see Teak).
— Jerusalem oak. See under Jerusalem.
— New Zealand oak, a sapindaceous tree (Alectryon excelsum).
— Poison oak, the poison ivy. See under Poison.
— Silky, or Silk-bark, oak, an Australian tree (Grevillea robusta).
Green oak, oak wood colored green by the growth of the mycelium of
certain fungi.
— Oak apple, a large, smooth, round gall produced on the leaves of
the American red oak by a gallfly (Cynips confluens). It is green and
pulpy when young.
— Oak beauty (Zoöl.), a British geometrid moth (Biston prodromaria)
whose larva feeds on the oak.
— Oak gall, a gall found on the oak. See 2d Gall.
— Oak leather (Bot.), the mycelium of a fungus which forms
leatherlike patches in the fissures of oak wood.
— Oak pruner. (Zoöl.) See Pruner, the insect.
— Oak spangle, a kind of gall produced on the oak by the insect
Diplolepis lenticularis.
— Oak wart, a wartlike gall on the twigs of an oak.
— The Oaks, one of the three great annual English horse races (the
Derby and St. Leger being the others). It was instituted in 1779 by
the Earl of Derby, and so called from his estate.
— To sport one's oak, to be "not at home to visitors," signified by
closing the outer (oaken) door of one's rooms. [Cant, Eng. Univ.]

OAKEN
Oak"en, a. Etym: [AS. acen.]

Defn: Made or consisting of oaks or of the wood of oaks. "In oaken
bower." Milton.
Oaken timber, wherewith to build ships. Bacon.

OAKER
Oak"er, n.

Defn: See Ocher. [Obs.] Spenser.

OAKLING
Oak"ling, n.

Defn: A young oak. Evelyn.

OAKUM Oak"um, n. Etym: [AS. acumba; pref. er-, Goth. us-, orig. meaning, out) + cemban to comb, camb comb. See Comb.]

1. The material obtained by untwisting and picking into loose fiber old hemp ropes; — used for calking the seams of ships, stopping leaks, etc.

2. The coarse portion separated from flax or hemp in nackling. Knight. White oakum, that made from untarred rope.

OAKY
Oak"y, n.

Defn: Resembling oak; strong. Bp. Hall.

OAR Oar, n Etym: [AS. ar; akin to Icel. ar, Dan. aare, Sw. åra; perh. akin to E. row, v. Cf. Rowlock.]

1. An implement for impelling a boat, being a slender piece of timber, usually ash or spruce, with a grip or handle at one end and a broad blade at the other. The part which rests in the rowlock is called the loom.

Note: An oar is a kind of long paddle, which swings about a kind of fulcrum, called a rowlock, fixed to the side of the boat.

2. An oarsman; a rower; as, he is a good car.

3. (Zoöl.)

Defn: An oarlike swimming organ of various invertebrates. Oar cock (Zoöl), the water rail. [Prov. Eng.] — Spoon oar, an oar having the blade so curved as to afford a better hold upon the water in rowing. — To boat the oars, to cease rowing, and lay the oars in the boat. — To feather the oars. See under Feather., v. t. — To lie on the oars, to cease pulling, raising the oars out of water, but not boating them; to cease from work of any kind; to be idle; to rest. — To muffle the oars, to put something round that part which rests in the rowlock, to prevent noise in rowing. — To put in one's oar, to give aid or advice; — commonly used of a person who obtrudes aid or counsel not invited. — To ship the oars, to place them in the rowlocks. — To toss the oars, To peak the oars, to lift them from the rowlocks and hold them perpendicularly, the handle resting on the bottom of the boat. — To trail oars, to allow them to trail in the water alongside of the boat. — To unship the oars, to take them out of the rowlocks.

OAR
Oar, v. t. & i. [imp. & p. p. Oared; p. pr. & vb. n. Oaring.]

Defn: To row. "Oared himself." Shak.
Oared with laboring arms. Pope.

OARED
Oared, a.

1. Furnished with oars; — chiefly used in composition; as, a four- oared boat.

2. (Zoöl.) (a) Having feet adapted for swimming. (b) Totipalmate; — said of the feet of certain birds. See Illust. of Aves. Oared shrew (Zoöl.), an aquatic European shrew (Crossopus ciliatus); — called also black water shrew.

OARFISH
Oar"fish` (or"fish`), n. (Zoöl.)

Defn: The ribbon fish.

OARFOOT
Oar"foot` (-foot`), n. (Zoöl.)

Defn: Any crustacean of the genus Remipes.

OAR-FOOTED
Oar"-foot`ed a.

Defn: Having feet adapted for swimming.

OARLESS
Oar"less, a.

Defn: Without oars. Sylvester.

OARLOCK
Oar"lock` (or"lok`), n. (Naut.),

Defn: The notch, fork, or other device on the gunwale of a boat, in which the oar rests in rowing. See Rowlock.

OARSMAN
Oars"man (orz"man), n.; pl. Oarsmen (-men).

Defn: One who uses, or is skilled in the use of, an oar; a rower.

At the prow of the boat, rose one of the oarsmen.
Longfellow.

OARSWEED
Oars"weed` (or"wed`), n. (Bot.)

Defn: Any large seaweed of the genus Laminaria; tangle; kelp. See
Kelp.

OARY
Oar"y (or"y), a.

Defn: Having the form or the use of an oar; as, the swan's oary feet.
Milton. Addison.

OASIS O"as*is (o"a*sis or o*a"sis; 277), n.; pl. Oases (-sez). [L., fr. Gr. 'o`asis; cf. Copt. ouahe.]

Defn: A fertile or green spot in a waste or desert, esp. in a sandy desert.

My one oasis in the dust and drouth
Of city life.
Tennyson.

OAST
Oast (ost), n. [OE. ost, AS. ast; cf. Gr. a'i^qos burning heat.]

Defn: A kiln to dry hops or malt; a cockle. Mortimer.

OATCAKE
Oat"cake, n.

Defn: A cake made of oatmeal.

OATEN
Oat"en, a.

1. Consisting of an oat straw or stem; as, an oaten pipe. Milton.

2. Made of oatmeal; as, oaten cakes.

OATH Oath, n.; pl. Oaths. Etym: [OE. othe, oth, ath, AS. a; akin to D. eed, OS. e, G. eid, Icel. ei, Sw. ed, Dan. eed, Goth. ai; cf. OIr. oeth.]

1. A solemn affirmation or declaration, made with a reverent appeal to God for the truth of what is affirmed. "I have an oath in heaven" Shak. An oath of secrecy for the concealing of those [inventions] which we think fit to keep secret. Bacon.

2. A solemn affirmation, connected with a sacred object, or one regarded as sacred, as the temple, the altar, the blood of Abel, the Bible, the Koran, etc.

3. (Law)

Defn: An appeal (in verification of a statement made) to a superior sanction, in such a form as exposes the party making the appeal to an indictment for perjury if the statement be false.

4. A careless and blasphemous use of the name of the divine Being, or anything divine or sacred, by way of appeal or as a profane exclamation or ejaculation; an expression of profane swearing. "A terrible oath" Shak.

OATHABLE
Oath"a*ble, a.

Defn: Capable of having an oath administered to. [Obs.] Shak.

OATHBREAKING
Oath"break`ing, n.

Defn: The violation of an oath; perjury. Shak

OATMEAL
Oat"meal`, n.

1. Meal made of oats. Gay.

2. (Bot.)

Defn: A plant of the genus Panicum; panic grass.

OB-
Ob-. Etym: [L. ob, prep. Cf. Epi-.]

Defn: A prefix signifying to, toward, before, against, reversely, etc.; also, as a simple intensive; as in oblige, to bind to; obstacle, something standing before; object, lit., to throw against; obovate, reversely, ovate. Ob- is commonly assimilated before c, f, g, and p, to oc-, of-, og-, and op-.

OBBE
Ob"be, n.

Defn: See Obi.

OBCOMPRESSED
Ob"com*pressed". a. Etym: [Pref. ob- + compressed.]

Defn: Compressed or flattened antero-posteriorly, or in a way opposite to the usual one.

OBCONIC; OBCONICAL
Ob*con"ic, Ob*con"ic*al, a. Etym: [Pref. ob- + conic, conical.]

Defn: Conical, but having the apex downward; inversely conical.

OBCORDATE
Ob*cor"date, a. Etym: [Pref. ob- + cordate.]

Defn: Heart-shaped, with the attachment at the pointed end; inversely cordate: as, an obcordate petal or leaf.

OBDIPLOSTEMONOUS
Ob*dip`lo*stem"o*nous, a. Etym: [Pref. ob- + diplostemonous.] (Bot.)

Defn: Having twice as many stamens as petals, those of the outer set being opposite the petals; — said of flowers. Gray.

OBDIPLOSTEMONY
Ob*dip"lo*stem"o*ny, n. (Bot.)

Defn: The condition of being obdiplostemonous.

OBDORMITION
Ob"dor*mi"tion, n. Etym: [L. obdormire to fall asleep.]

Defn: Sleep. [Obs.] Bp. Hall.

OBDUCE Ob*duce", v. t. Etym: [L. obducere, obductum; ob (see Ob-) + ducere to lead.]

Defn: To draw over, as a covering. [Obs.] Sir M. Hale.

OBDUCT
Ob*duct" (, v. t. Etym: [See Obduce.]

Defn: To draw over; to cover. [Obs.] Sir T. Browne.

OBDUCTION
Ob*duc"tion, n. Etym: [L.obductio.]

Defn: .The act of drawing or laying over, as a covering. [Obs.]

OBDURACY
Ob"du*ra*cy, n.

Defn: The duality or state of being obdurate; invincible hardness of heart; obstinacy. "Obduracy and persistency." Shak. The absolute completion of sin in final obduracy. South.

OBDURATE Ob"du*rate, a. Etym: [L. obduratus, p. p. of obdurare to harden; ob (see Ob-)+ durare to harden, durus hard. See Dure.]

1. Hardened in feelings, esp. against moral or mollifying influences; unyielding; hard-hearted; stubbornly wicked. The very custom of evil makes the heart obdurate against whatsoever instructions to the contrary. Hooker. Art thou obdurate, flinty, hard as steel, Nay, more than flint, for stone at rain relenteth Shak.

2. Hard; harsh; rugged; rough; intractable. "Obdurate consonants." Swift.

Note: Sometimes accented on the second syllable, especially by the
older poets.
There is no flesh in man's obdurate heart. Cowper.

Syn. — Hard; firm; unbending; inflexible; unyielding; stubborn; obstinate; impenitent; callous; unfeeling; insensible; unsusceptible. — Obdurate, Callous, Hardened. Callous denotes a deadening of the sensibilities; as. a callous conscience. Hardened implies a general and settled disregard for the claims of interest, duty, and sympathy; as, hardened in vice. Obdurate implies an active resistance of the heart and will aganst the pleadings of compassion and humanity. — Ob"du*rate*ly, adv. — Ob"du*rate*ness, n.

OBDURATE
Ob"du*rate, v. t.

Defn: To harden. [Obs.]

OBDURATION
Ob"du*ra"tion, n. Etym: [L. obduratio.]

Defn: A hardening of the heart; hardness of heart. [Obs.]

OBDURE
Ob*dure", v. t.

Defn: To harden. [Obs.] Milton.

OBDURE; OBDURED
Ob*dure", Ob*dured", a.

Defn: Obdurate; hard. [Obs.]
This saw his hapless foes, but stood obdured. Milton.

OBDURENESS; OBDUREDNESS
Ob*dure"ness, n., Ob*dur"ed*ness, n.

Defn: Hardness. [Obs.] Bp. Hall.

OBE
Ob"e (o"be), n.

Defn: See Obi.

OBEAH
O*be"ah. n.

Defn: Same as Obi.
— a.

Defn: Of or pertaining to obi; as, the obeah man. B. Edwards.

OBEDIBLE
O*be"di*ble, a.

Defn: Obedient. [Obs.] Bp. Hall.

OBEDIENCE
O*be"di*ence, n. Etym: [F. obédience, L. obedientia, oboedientia. See
Obedient, and cf.Obeisance.]

1. The act of obeying, or the state of being obedient; compliance with that which is required by authority; subjection to rightful restraint or control. Government must compel the obedience of individuals. Ames.

2. Words or actions denoting submission to authority; dutifulness. Shak.

3. (Eccl.) (a) A following; a body of adherents; as, the Roman Catholic obedience, or the whole body of persons who submit to the authority of the pope. (b) A cell (or offshoot of a larger monastery) governed by a prior. (c) One of the three monastic vows. Shipley. (d) The written precept of a superior in a religious order or congregation to a subject. Canonical obedience. See under Canonical. — Passive obedience. See under Passive.

OBEDIENCIARY
O*be`di*en"ci*a*ry, n.

Defn: One yielding obedience. [Obs.] Foxe.

OBEDIENT O*be"di*ent, a. Etym: [OF. obedient, L. obediens, oboediens, -entis. p.pr. of obedire, oboedire, to obey. See Obey.]

Defn: Subject in will or act to authority; willing to obey; submissive to restraint, control, or command. And floating straight, obedient to the stream. Shak. The chief his orders gives; the obedient band, With due observance, wait the chief's command. Pope.

Syn.
— Dutiful; respectful; compliant; submissive.

OBEDIENTIAL
O*be`di*en"tial, a. Etym: [Cf. F. obédientiel.]

Defn: According to the rule of obedience. [R.]
An obediental subjection to the Lord of Nature. Sir M. Hale.

OBEDIENTLY
O*be"di*ent*ly, adv.

Defn: In an obedient manner; with obedience.

OBEISANCE
O*bei"sance, n. Etym: [F. obéissance obedience, fr. obéissant. See
Obey, and cf. Obedience, Abaisance.]

1. Obedience. [Obs.] Chaucer.

2. A manifestation of obedience; an expression of difference or respect; homage; a bow; a courtesy. Bathsheba bowed and did obeisance unto the king. 1 Kings i. 16.

OBEISANCY
O*bei"san*cy, n.

Defn: See Obeisance. [Obs.]

OBEISANT
O*bei"sant, a. Etym: [F. obéissant, p.pr. of obéir to obey.]

Defn: Ready to obey; reverent; differential; also, servilely submissive.

OBELION
O*be"li*on, n. Etym: [NL., from Gr. (Anat.)

Defn: The region of the skull between the two parietal foramina where the closure of the sagittal suture usually begins.

OBELISCAL
Ob`e*lis"cal, a.

Defn: Formed like an obelisk.

OBELISK
Ob"e*lisk, n. Etym: [L. obeliscus, Gr. obélisque.]

1. An upright, four-sided pillar, gradually tapering as it rises, and terminating in a pyramid called pyramidion. It is ordinarily monolithic. Egyptian obelisks are commonly covered with hieroglyphic writing from top to bottom.

2. (Print.)

Defn: A mark of reference; — called also dagger [&dag;]. See Dagger, n., 2.

OBELISK
Ob"e*lisk, v. t. [imp. & p. p. Obelisked; p. pr. & vb. n.
Obelisking.]

Defn: To mark or designate with an obelisk.

OBELIZE
Ob"e*lize, v. t. [imp. & p. p. Obelized; p. pr. & vb. n. Obelizing.]
Etym: [Gr. Obelus.]

Defn: To designate with an obelus; to mark as doubtful or spirituous.
[R.]

OBELUS
Ob"e*lus, n.; pl. Obeli. Etym: [L., fr. Gr. (Print.)

Defn: A mark [thus —-, or ÷]; — so called as resembling a needle. In old MSS. or editions of the classics, it marks suspected passages or readings.

OBEQUITATE Ob*eq"ui*tate, v. i. Etym: [L. obequitatus, p.p. of obequitare to ride about.]

Defn: To ride about. [Obs.] — Ob*eq`ui*ta"tion, n. [Obs.] Cockerman.

OBERON
Ob"er*on, n. Etym: [F., fr. OF. Auberon; prob. of Frankish origin.]
(Mediæval Mythol.)

Defn: The king of the fairies, and husband of Titania or Queen Mab.
Shak.

OBERRATION
Ob`er*ra"tion, n. Etym: [L. oberrate to wander about.]

Defn: A wandering about. [Obs.] Jonhson.

OBESE O*bese". a. Etym: [L. obesus eaten away, lean; also, that has eaten itself fat, fat, stout, p.p. of obedere to devour; ob (see Ob-) + edere to eat. See Eat.]

Defn: Excessively corpulent; fat; fleshy.

OBESENESS
O*bese"ness, n.

Defn: Quality of being obese; obesity.

OBESITY
O*bes"i*ty, n.Etym: [L. obesitas: cf.F. obésité.]

Defn: The state or quality of being obese; incumbrance of flesh.

OBEY
O*bey", v. t. [imp. & p. p. Obeyed; p. pr. & vb. n. Obeying.] Etym:
[OE. obeyen, F. obéir, fr. L. obedire, oboedire; ob (see Ob-) +
audire to hear. See Audible, and cf. Obeisance.]

1. To give ear to; to execute the commands of; to yield submission to; to comply with the orders of. Children, obey your parents in the Lord. Eph. vi. 1. Was she the God, that her thou didst obey Milton.

2. To submit to the authority of; to be ruled by. My will obeyed his will. Chaucer. Afric and India shall his power obey. Dryden.

3. To yield to the impulse, power, or operation of; as, a ship obeys her helm.

OBEY
O*bey", v. i.

Defn: To give obedience.
Will he obey when one commands Tennyson.

Note: By some old writers obey was used, as in the French idiom, with
the preposition to.
His servants ye are, to whom ye obey. Rom. vi. 16.
He commanded the trumpets to sound: to which the two brave knights
obeying, they performed their courses. Sir. P. Sidney.

OBEYER
O*bey"er, n.

Defn: One who yields obedience. Holland.

OBEYINGLY
O*bey"ing*ly, adv.

Defn: Obediently; submissively.

OBFIRM; OBFIRMATE Ob*firm", Ob*firm"ate, v. t. Etym: [L. obfirmatus, p.p. of obfirmare to make steadfast. See Ob-, and Firm, v. t.]

Defn: To make firm; to harden in resolution. [Obs.] Bp. Hall.
Sheldon.

OBFIRMATION
Ob"fir*ma"tion, n. Etym: [LL. obfirmatio.]

Defn: Hardness of heart; obduracy. [Obs.] Jer. Taylor.

OBFUSCATE Ob*fus"cate, a. Etym: [L. obfuscatus, p.p. of obfuscare to darken; ob (see Ob-) + fuscare, fuscatum, to darken, from fuscus dark.]

Defn: Obfuscated; darkened; obscured. [Obs.] [Written also offuscate.] Sir. T. Elyot.

OBFUSCATE
Ob*fus"cate, v. t. [imp. & p. p. Obfuscated; p. pr. & vb. n.
Obfuscating.]

Defn: To darken; to obscure; to becloud; hence, to confuse; to bewilder. His head, like a smokejack, the funnel unswept, and the ideas whirling round and round about in it, all obfuscated and darkened over with fuliginous matter. Sterne. Clouds of passion which might obfuscate the intellects of meaner females. Sir. W. Scott.

OBFUSCATION
Ob`fus*ca"tion, n. Etym: [L. obfuscatio.]

Defn: The act of darkening or bewildering; the state of being darkened. "Obfuscation of the cornea." E. Darwin.

OBI
O"bi, n. Etym: [Prob. of African origin.]

1. A species of sorcery, probably of African origin, practiced among the negroes of the West Indies. [Written also obe and obeah.] De Quincey. B. Edwards.

2. A charm or fetich. [West Indies] B. Edwards.

OBIISM
O"bi*ism, n.

Defn: Belief in, or the practice of, the obi superstitions and rites.

OBIMBRICATE
Ob*im"bri*cate, a. Etym: [Pref. ob- + imbricate.] (Bot.)

Defn: Imbricated, with the overlapping ends directed downward.

OBIT O"bit, n. Etym: [OF. obit, L. obitus, fr. obire to go against, to go to meet, (sc.mortem) to die; ob (see Ob-) + ire to go. See Issue.]

1. Death; decease; the date of one's death. Wood.

2. A funeral solemnity or office; obsequies.

3. A service for the soul of a deceased person on the anniversary of the day of his death. The emoluments and advantages from oblations, obits, and other sources, increased in value. Milman. Post obit Etym: [L. post obitum]. See Post-obit.

OBITER Ob"i*ter, adv. Etym: [L., on the way; ob (see Ob-) + iter a going, a walk, way.]

Defn: In passing; incidentally; by the way. Obiter dictum (Law), an incidental and collateral opinion uttered by a judge. See Dictum, n., 2(a).

OBITUAL
O*bit"u*al, a. Etym: [L. obitus death. See Obit.]

Defn: Of or pertaining to obits, or days when obits are celebrated; as, obitual days. Smart.

OBITUARILY
O*bit"u*a*ri*ly, adv.

Defn: In the manner of an obituary.

OBITUARY
O*bit"u*a*ry, a. Etym: [See Obit.]

Defn: Of or pertaining to the death of a person or persons; as, an obituary notice; obituary poetry.

OBITUARY
O*bit"u*a*ry, n.; pl. Obituaries. Etym: [Cf. F. obituaire. See Obit.]

1. That which pertains to, or is called forth by, the obit or death of a person; esp., an account of a deceased person; a notice of the death of a person, accompanied by a biographical sketch.

2. (R.C.Ch.)

Defn: A list of the dead, or a register of anniversary days when service is performed for the dead.

OBJECT
Ob*ject", v. t. [imp. & p. p. Objected; p. pr. & vb. n. Objecting.]
Etym: [L. objectus, p.p. of objicere, obicere, to throw or put
before, to oppose; ob (see Ob-) + jacere to throw: cf. objecter. See
Jet a shooting forth.]

1. To set before or against; to bring into opposition; to oppose. [Obs.] Of less account some knight thereto object, Whose loss so great and harmful can not prove. Fairfax. Some strong impediment or other objecting itself. Hooker. Pallas to their eyes The mist objected, and condensed the skies. Pope.

2. To offer in opposition as a criminal charge or by way of accusation or reproach; to adduce as an objection or adverse reason. He gave to him to object his heinous crime. Spencer. Others object the poverty of the nation. Addison. The book … giveth liberty to object any crime against such as are to be ordered. Whitgift.

OBJECT
Ob*ject", v. i.

Defn: To make opposition in words or argument; — usually followed by to. Sir. T. More.

OBJECT
Ob"ject, n. Etym: [L. objectus. See Object, v. t.]

1. That which is put, or which may be regarded as put, in the way of some of the senses; something visible or tangible; as, he observed an object in the distance; all the objects in sight; he touched a strange object in the dark.

2. That which is set, or which may be regarded as set, before the mind so as to be apprehended or known; that of which the mind by any of its activities takes cognizance, whether a thing external in space or a conception formed by the mind itself; as, an object of knowledge, wonder, fear, thought, study, etc. Object is a term for that about which the knowing subject is conversant; what the schoolmen have styled the "materia circa quam." Sir. W. Hamilton. The object of their bitterest hatred. Macaulay.

3. That by which the mind, or any of its activities, is directed; that on which the purpose are fixed as the end of action or effort; that which is sought for; end; aim; motive; final cause. Object, beside its proper signification, came to be abusively applied to denote motive, end, final cause…. This innovation was probably borrowed from the French. Sir. W. Hamilton. Let our object be, our country, our whole country, and nothing but our country. D. Webster.

4. Sight; show; appearance; aspect. [Obs.] Shak. He, advancing close Up to the lake, past all the rest, arose In glorious object. Chapman.

5. (Gram.)

Defn: A word, phrase, or clause toward which an action is directed, or is considered to be directed; as, the object of a transitive verb. Object glass, the lens, or system of lenses, placed at the end of a telescope, microscope, etc., which is toward the object. Its office is to form an image of the object, which is then viewed by the eyepiece. Called also objective. See Illust. of Microscope. — Object lesson, a lesson in which object teaching is made use of. — Object staff. (Leveling) Same as Leveling staff. — Object teaching, a method of instruction, in which illustrative objects are employed, each new word or idea being accompanied by a representation of that which it signifies; — used especially in the kindergarten, for young children.

OBJECT
Ob*ject", a. Etym: [L. objectus, p. p.]

Defn: Opposed; presented in opposition; also, exposed. [Obs.]

OBJECTABLE
Ob*ject"a*ble, a.

Defn: Such as can be presented in opposition; that may be put forward as an objection. [R.]

OBJECTIFY
Ob*jec"ti*fy, v. t. Etym: [Object + -fy.]

Defn: To cause to become an object; to cause to assume the character of an object; to render objective. J. D. Morell.

OBJECTION
Ob*jec"tion, n. Etym: [L. objectio: cf. F. objection.]

1. The act of objecting; as, to prevent agreement, or action, by objection. Johnson.

2. That which is, or may be, presented in opposition; an adverse reason or argument; a reason for objecting; obstacle; impediment; as, I have no objection to going; unreasonable objections. "Objections against every truth." Tyndale.

3. Cause of trouble; sorrow. [Obs. or R.] He remembers the objection that lies in his bosom, and he sighs deeply. Jer. Taylor.

Syn.
— Exception; difficulty; doubt; scruple.

OBJECTIONABLE
Ob*jec"tion*a*ble, a.

Defn: Liable to objection; likely to be objected to or disapproved of; offensive; as, objectionable words. — Ob*jec"tion*a*bly, adv.

OBJECTIST
Ob"ject*ist, n.

Defn: One who adheres to, or is skilled in, the objective philosophy.
Ed. Rev.

OBJECTIVATE
Ob*jec"ti*vate, v. t.

Defn: To objectify.

OBJECTIVATION
Ob*jec`ti*va"tion, n.

Defn: Converting into an object.

OBJECTIVE
Ob*jec"tive, a. Etym: [Cf.F. objectif.]

1. Of or pertaining to an object.

2. (Metaph.)

Defn: Of or pertaining to an object; contained in, or having the nature or position of, an object; outward; external; extrinsic; — an epithet applied to whatever ir exterior to the mind, or which is simply an object of thought or feeling, and opposed to subjective. In the Middle Ages, subject meant substance, and has this sense in Descartes and Spinoza: sometimes, also, in Reid. Subjective is used by William of Occam to denote that which exists independent of mind; objective, what is formed by the mind. This shows what is meant by realitas objectiva in Descartes. Kant and Fichte have inverted the meanings. Subject, with them, is the mind which knows; object, that which is known; subjective, the varying conditions of the knowing mind; objective, that which is in the constant nature of the thing known. Trendelenburg. Objective means that which belongs to, or proceeds from, the object known, and not from the subject knowing, and thus denotes what is real, in opposition to that which is ideal — what exists in nature, in contrast to what exists merely in the thought of the individual. Sir. W. Hamilton. Objective has come to mean that which has independent exostence or authority, apart from our experience or thought. Thus, moral law is said to have objective authority, that is, authority belonging to itself, and not drawn from anything in our nature. Calderwood (Fleming's Vocabulary).

3. (Gram.)

Defn: Pertaining to, or designating, the case which follows a transitive verb or a preposition, being that case in which the direct object of the verb is placed. See Accusative, n.

Note: The objective case is frequently used without a governing word, esp. in designations of time or space, where a preposition, as at, in, on, etc., may be supplied. My troublous dream [on] this night make me sad. Shak. To write of victories [in or for] next year. Hudibras. Objective line (Perspective), a line drawn on the geometrical plane which is represented or sought to be represented. — Objective plane (Perspective), any plane in the horizontal plane that is represented. — Objective point, the point or result to which the operations of an army are directed. By extension, the point or purpose to which anything, as a journey or an argument, is directed.

Syn. — Objective, Subjective. Objective is applied to things exterior to the mind, and objects of its attention; subjective, to the operations of the mind itself. Hence, an objective motive is some outward thing awakening desire; a subjective motive is some internal feeling or propensity. Objective views are those governed by outward things; subjective views are produced or modified by internal feeling. Sir Walter Scott's poetry is chiefly objective; that of Wordsworth is eminently subjective. In the philosophy of mind, subjective denotes what is to be referred to the thinking subject, the ego; objective what belongs to the object of thought, the non-ego. Sir. W. Hamilton

OBJECTIVE
Ob*jec"tive, n.

1. (Gram.)

Defn: The objective case.

2. An object glass. See under Object, n.

3. Same as Objective point, under Objective, a.

OBJECTIVELY
Ob*jec"tive*ly, adv.

Defn: In the manner or state of an object; as, a determinate idea objectively in the mind.

OBJECTIVENESS
Ob*jec"tive*ness, n.

Defn: Objectivity. Is there such a motion or objectiveness of external bodies, which produceth light Sir M. Hale

OBJECTIVITY
Ob`jec*tiv"i*ty, n. Etym: [Cf.F. objectivité.]

Defn: The state, quality, or relation of being objective; character of the object or of the objective. The calm, the cheerfulness, the disinterested objectivity have disappeared [in the life of the Greeks]. M. Arnold.

OBJECTIZE
Ob"ject*ize, v. t.

Defn: To make an object of; to regard as an object; to place in the
position of an object.
In the latter, as objectized by the former, arise the emotions and
affections. Coleridge.

OBJECTLESS
Ob"ject*less, a.

Defn: Having no object; purposeless.

OBJECTOR
Ob*ject"or, n. Etym: [L., an accuser.]

Defn: One who objects; one who offers objections to a proposition or measure.

OBJIBWAYS
Ob*jib"ways, n.pl.

Defn: See Chippeways.

OBJICIENT
Ob*jic"i*ent, n. Etym: [L. objiciens, p.pr. of objicere to object.]

Defn: One who makes objection; an objector. [R.] Cardinal Wiseman.

OBJURATION Ob`ju*ra"tion, n. Etym: [L. objurare to bind by oath; ob (see Ob-) + jurare to swear, fr. jus right.]

Defn: A binding by oath. [R.] Abp. Bramhall.

OBJURGATE
Ob*jur"gate, v. t. [imp. & p. p. Objurgated; p. pr. & vb. n.
Objurgating.] Etym: [L.objurgatus, p.p. of objurgare to chide; ob
(see Ob-) + jurgare to quarrel, scold, fr. jus right, court. See
Jury.]

Defn: To chide; to reprove.

OBJURGATION
Ob`jur*ga"tion, n. Etym: [L. objurgatio: cf.F.objurgation.]

Defn: The act of objurgating; reproof.
While the good lady was bestowing this objurgation on Mr.Ben Allen.
Dickens.
With a strong objurgation of the elbow in his ribs. Landor.

OBJURGATORY
Ob*jur"ga*to*ry, a. Etym: [L. objurgatorius.]

Defn: Designed to objurgate or chide; containing or expressing reproof; culpatory. Bancroft. The objurgatory question of the Pharisees. Paley.

OBLANCEOLATE
Ob*lan"ce*o*late, a. Etym: [Pref. ob- + lanceolate.]

Defn: Lanceolate in the reversed order, that is, narrowing toward the point of attachment more than toward the apex.

OBLATE
Ob*late", a. Etym: [L. oblatus, used as p.p. of offerre to bring
forward, offer, dedicate; ob (see Ob-) + latus borne, for tlatus. See
Tolerate.]

1. (Geom.)

Defn: Flattened or depressed at the poles; as, the earth is an oblate spheroid.

2. Offered up; devoted; consecrated; dedicated; — used chiefly or only in the titles of Roman Catholic orders. See Oblate, n. Oblate ellipsoid or spheroid (Geom.), a solid generated by the revolution of an ellipse about its minor axis; an oblatum. See Ellipsoid of revolution, under Ellipsoid.

OBLATE Ob*late", n. Etym: [From Oblate, a.] (R.C.Ch.) (a) One of an association of priests or religious women who have offered themselves to the service of the church. There are three such associations of priests, and one of women, called oblates. (b) One of the Oblati.

OBLATENESS
Ob*late"ness, n.

Defn: The quality or state of being oblate.

OBLATI Ob*la"ti, n. pl. Etym: [LL., fr. L. oblatus. See Oblate.] (R.C.Ch.) (a) Children dedicated in their early years to the monastic state. (b) A class of persons, especially in the Middle Ages, who offered themselves and their property to a monastery. Addis & Arnold.

OBLATION
Ob*la"tion, n. Etym: [L. oblatio: cf. F. oblation. See Oblate.]

1. The act of offering, or of making an offering. Locke.

2. Anything offered or presented in worship or sacred service; an
offering; a sacrifice.
A peculiar … oblation given to God. Jer. Taylor.
A pin was the usual oblation. Sir. W. Scott.

3. A gift or contribution made to a church, as for the expenses of the eucharist, or for the support of the clergy and the poor.

OBLATIONER
Ob*la"tion*er, n.

Defn: One who makes an offering as an act worship or reverence. Dr.
H. More.

OBLATRATE Ob*la"trate, v. i. Etym: [L. oblatratus, p.p. of oblatrare to bark against.]

Defn: To bark or snarl, as a dog. [Obs.]

OBLATRATION
Ob`la*tra"tion, n.

Defn: The act of oblatrating; a barking or snarling. Bp. Hall.

OBLATUM
Ob*la"tum, n.; pl. Oblata. Etym: [NL. See Oblate.] (Geom.)

Defn: An oblate spheroid; a figure described by the revolution of an ellipse about its minor axis. Cf. Oblongum.

OBLECTATE
Ob*lec"tate, v. t. Etym: [L. oblectatus, p.p. of oblectare.]

Defn: To delight; to please greatly. [Obs.]

OBLECTATION
Ob"lec*ta"tion, n. Etym: [L. oblectatio.]

Defn: The act of pleasing highly; the state of being greatly pleased; delight. [R.] Feltham.

OBLIGABLE
Ob"li*ga*ble, a.

Defn: Acknowledging, or complying with, obligation; trustworthy. [R.] The main difference between people seems to be, that one man can come under obligations on which you can rely, — is obligable; and another is not. Emerson.

OBLIGATE
Ob"li*gate, v. t. [imp. & p. p. Obligated; p. pr. & vb. n.
Obligating.] Etym: [L. obligatus, p.p. of obligare. See Oblige.]

1. To bring or place under obligation, moral or legal; to hold by a constraining motive. "Obligated by a sense of duty." Proudfit. That's your true plan — to obligate The present ministers of state. Churchill.

2. To bind or firmly hold to an act; to compel; to constrain; to bind to any act of duty or courtesy by a formal pledge. That they may not incline or be obligated to any vile or lowly occupations. Landor.

OBLIGATION
Ob"li*ga"tion, n. Etym: [F. obligation. L. obligatio. See Oblige.]

1. The act of obligating.

2. That which obligates or constrains; the binding power of a promise, contract, oath, or vow, or of law; that which constitutes legal or moral duty. A tender conscience is a stronger obligation than a proson. Fuller.

3. Any act by which a person becomes bound to do something to or for anouther, or to forbear something; external duties imposed by law, promise, or contract, by the relations of society, or by courtesy, kindness, etc. Every man has obligations which belong to his station. Duties extend beyond obligation, and direct the affections, desires, and intentions, as well as the actions. Whewell.

4. The state of being obligated or bound; the state of being indebted for an act of favor or kindness; as, to place others under obligations to one.

5. (Law)

Defn: A bond with a condition annexed, and a penalty for nonfulfillment. In a larger sense, it is an acknowledgment of a duty to pay a certain sum or do a certain things. Days of obligation. See under Day.

OBLIGATO
Ob"li*ga"to, a. Etym: [It.]

Defn: See Obbligato.

OBLIGATORILY
Ob"li*ga*to*ri*ly, adv.

Defn: In an obligatory manner; by reason of obligation. Foxe.

OBLIGATORINESS
Ob"li*ga*to*ri*ness, n.

Defn: The quality or state of being obligatory.

OBLIGATORY
Ob"li*ga*to*ry, a. Etym: [L. obligatorius: cf.F. obligatoire.]

Defn: Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; — often followed by on or upon; as, obedience is obligatory on a soldier. As long as the law is obligatory, so long our obedience is due. Jer. Taylor.

OBLIGE
O*blige", v. t. [imp. & p. p. Obliged; p. pr. & vb. n. Obliging.]
Etym: [OF. obligier, F.obliger, L. obligare; ob (see Ob-) + ligare to
bind. See Ligament, and cf. Obligate.]

1. To attach, as by a bond. [Obs.] He had obliged all the senators and magistrates firmly to himself. Bacon.

2. To constrain by physical, moral, or legal force; to put under obligation to do or forbear something. The obliging power of the law is neither founded in, nor to be measured by, the rewards and punishments annexed to it. South. Religion obliges men to the practice of those virtues which conduce to the preservation of our health. Tillotson.

3. To bind by some favor rendered; to place under a debt; hence, to do a favor to; to please; to gratify; to accommodate. Thus man, by his own strength, to heaven would soar, And would not be obliged to God for more. Dryden. The gates before it are brass, and the whole much obliged to Pope Urban VIII. Evelyn. I shall be more obliged to you than I can express. Mrs. E. Montagu.

OBLIGEE
Ob"li*gee", n. Etym: [F. obligé, p.p. of obliger. See Oblige.]

Defn: The person to whom another is bound, or the person to whom a bond is given. Blackstone.

OBLIGEMENT
O*blige"ment, n.

Defn: Obligation. [R.] I will not resist, therefore, whatever it is, either of divine or human obligement, that you lay upon me. Milton.

OBLIGER
O*bli"ger, n.

Defn: One who, or that which, obliges. Sir H. Wotton.

OBLIGING
O*bli"ging, a.

Defn: Putting under obligation; disposed to oblige or do favors; hence, helpful; civil; kind. Mons.Strozzi has many curiosities, and is very obliging to a stranger who desires the sight of them. Addison.

Syn. — Civil; complaisant; courteous; kind, — Obliging, Kind, Complaisant. One is kind who desires to see others happy; one is complaisant who endeavors to make them so in social intercourse by attentions calculated to please; one who is obliging performs some actual service, or has the disposition to do so. — O*bli"ging*ly. adv. — O*bli"ging*ness, n.

OBLIGOR
Ob`li*gor", n.

Defn: The person who binds himself, or gives his bond to another.
Blackstone.

OBLIQUATION Ob`li*qua"tion, n. Etym: [L. obliquatio, fr. obliquare to turn obliquely. See Oblique.]

1. The act of becoming oblique; a turning to one side; obliquity; as, the obliquation of the eyes. [R.] Sir T. Browne.

2. Deviation from moral rectitude. [R.]

OBLIQUE Ob*lique", a. Etym: [F., fr. L. obliquus; ob (see Ob-) + liquis oblique; cf. licinus bent upward, Gr [Written also oblike.]

1. Not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined. It has a direction oblique to that of the former motion. Cheyne.

2. Not straightforward; indirect; obscure; hence, disingenuous; underhand; perverse; sinister. The love we bear our friends… Hath in it certain oblique ends. Drayton. This mode of oblique research, when a more direct one is denied, we find to be the only one in our power. De Quincey. Then would be closed the restless, oblique eye. That looks for evil, like a treacherous spy. Wordworth.

3. Not direct in descent; not following the line of father and son; collateral. His natural affection in a direct line was strong, in an oblique but weak. Baker. Oblique angle, Oblique ascension, etc. See under Angle,Ascension, etc. — Oblique arch (Arch.), an arch whose jambs are not at right angles with the face, and whose intrados is in consequence askew. — Oblique bridge, a skew bridge. See under Bridge, n. — Oblique case (Gram.), any case except the nominative. See Case, n. — Oblique circle (Projection), a circle whose plane is oblique to the axis of the primitive plane. — Oblique fire (Mil.), a fire the direction of which is not perpendicular to the line fired at. — Oblique flank (Fort.), that part of the curtain whence the fire of the opposite bastion may be discovered. Wilhelm. — Oblique leaf. (Bot.) (a) A leaf twisted or inclined from the normal position. (b) A leaf having one half different from the other. — Oblique line (Geom.), a line that, meeting or tending to meet another, makes oblique angles with it. — Oblique motion (Mus.), a kind of motion or progression in which one part ascends or descends, while the other prolongs or repeats the same tone, as in the accompanying example. — Oblique muscle (Anat.), a muscle acting in a direction oblique to the mesial plane of the body, or to the associated muscles; — applied especially to two muscles of the eyeball. — Oblique narration. See Oblique speech. — Oblique planes (Dialing), planes which decline from the zenith, or incline toward the horizon. — Oblique sailing (Naut.), the movement of a ship when she sails upon some rhumb between the four cardinal points, making an oblique angle with the meridian. — Oblique speech (Rhet.), speech which is quoted indirectly, or in a different person from that employed by the original speaker. — Oblique sphere (Astron. & Geog.), the celestial or terrestrial sphere when its axis is oblique to the horizon of the place; or as it appears to an observer at any point on the earth except the poles and the equator. — Oblique step (Mil.), a step in marching, by which the soldier, while advancing, gradually takes ground to the right or left at an angle of about 25º. It is not now practiced. Wilhelm. — Oblique system of coördinates (Anal. Geom.), a system in which the coördinate axes are oblique to each other.

OBLIQUE
Ob*lique", n. (Geom.)

Defn: An oblique line.

OBLIQUE
Ob*lique", v. i. [imp. & p. p. Obliqued p. pr. & vb. n. Obliquing.]

1. To deviate from a perpendicular line; to move in an oblique direction. Projecting his person towards it in a line which obliqued from the bottom of his spine. Sir. W. Scott.

2. (Mil.)

Defn: To march in a direction oblique to the line of the column or platoon; — formerly accomplished by oblique steps, now by direct steps, the men half-facing either to the right or left.

OBLIQUE-ANGLED
Ob*lique"-an`gled, a.

Defn: Having oblique angles; as, an oblique-angled triangle.

OBLIQUELY
Ob*lique"ly, adv.

Defn: In an oblique manner; not directly; indirectly. "Truth
obliquely leveled." Bp. Fell.
Declining from the noon of day, The sun obliquely shoots his burning
ray. Pope
His discourse tends obliquely to the detracting from others. Addison.

OBLIQUENESS
Ob*lique"ness, n.

Defn: Quality or state of being oblique.

OBLIQUITY Ob*liq"ui*ty, n.; pl. Obliquities. Etym: [L. obliquitas: cf. F. obliquité.]

1. The condition of being oblique; deviation from a right line; deviation from parallelism or perpendicularity; the amount of such deviation; divergence; as, the obliquity of the ecliptic to the equator.

2. Deviation from ordinary rules; irregularity; deviation from moral rectitude. To disobey [God]…imports a moral obliquity. South.

OBLITE
Ob"lite, a. Etym: [L. oblitus, p.p. pf oblinere to besmear.]

Defn: Indistinct; slurred over. [Obs.] "Obscure and oblite mention."
Fuller.

OBLITERATE
Ob*lit"er*ate, v. t. [imp. & p. p. Obliterated; p. pr. & vb. n.
Obliterating.] Etym: [L. obliteratus, p.p. of obliterare to
obliterate; ob (see Ob-) + litera, littera, letter. See Letter.]

1. To erase or blot out; to efface; to render undecipherable, as a writing.

2. To wear out; to remove or destroy utterly by any means; to render imperceptible; as. to obliterate ideas; to obliterate the monuments of antiquity. The harsh and bitter feelings of this or that experience are slowly obliterated. W. Black.

OBLITERATE
Ob*lit"er*ate, a. (Zoöl.)

Defn: Scarcely distinct; — applied to the markings of insects.

OBLITERATION
Ob*lit`er*a"tion, n. Etym: [L. obliteratio: cf.F. oblitération.]

Defn: The act of obliterating, or the state of being obliterated; extinction. Sir. M. Hale.

OBLITERATIVE
Ob*lit"er*a*tive, a.

Defn: Tending or serving to obliterate.

OBLIVION
Ob*liv"i*on, n. Etym: [L. oblivio, akin to oblivisci to forget: cf.
OF. oblivion.]

1. The act of forgetting, or the state of being forgotten; cessation of remembrance; forgetfulness. Second childishness and mere oblivion. Shak. Among our crimes oblivion may be set. Dryden The origin of our city will be buried in eternal oblivion. W. Irving.

2. Official ignoring of offenses; amnesty, or general pardon; as, an act of oblivion. Sir J. Davies.

Syn.
— See Forgetfulness.

OBLIVIOUS
Ob*liv"i*ous, a. Etym: [L.obliviosus: cf.F. oblivieux.]

1. Promoting oblivion; causing forgetfulness. "The oblivious pool." Milton. She lay in deep, oblivious slumber. Longfellow.

2. Evincing oblivion; forgetful.
Through are both weak in body and oblivious. Latimer.
— Obliv"i*ous*ly, adv.
— Ob*liv"i*ous*ness, n. Foxe.

OBLOCUTOR
Ob*loc"u*tor, n. Etym: [L. oblocutor, obloquutor, fr. obloqui,
oblocutus, to speak against; ob (see Ob-) + loqui to speak. See
Loquacious.]

Defn: A disputer; a gainsayer. [Obs.] Bale.

OBLONG Ob"long, a. Etym: [L. oblongus; ob (see Ob-) + longus long: cf. F. oblong.]

Defn: Having greater length than breadth, esp. when rectangular.

OBLONG
Ob"long, n.

Defn: A rectangular figure longer than it is broad; hence, any figure
longer than it is broad.
The best figure of a garden I esteem an oblong upon a descent. Sir W.
Temple.

OBLONGATA
Ob`lon*ga"ta, n. Etym: [NL.] (Anat.)

Defn: The medulla oblongata. B. G. Wilder.

OBLONGATAL
Ob"lon*ga"tal, a.

Defn: Of or pertaining to the medulla oblongata; medullar.

OBLONGISH
Ob"long*ish, a.

Defn: Somewhat oblong.

OBLONGLY
Ob"long*ly, adv.

Defn: In an oblong form.

OBLONGNESS
Ob"long*ness, n.

Defn: State or quality of being oblong.

OBLONG-OVATE
Ob"long-o"vate, a.

Defn: Between oblong and ovate, but inclined to the latter.

OBLONGUM
Ob*lon"gum, n.; pl. Oblonga. Etym: [NL. See Oblong.] (Geom.)

Defn: A prolate spheroid; a figure described by the revolution of an ellipse about its greater axis. Cf. Oblatum, and see Ellipsoid of revolution, under Ellipsoid.

OBLOQUIOUS
Ob*lo"qui*ous, a.

Defn: Containing obloquy; reproachful [R.] Naunton.

OBLOQUY
Ob"lo*quy, n. Etym: [L. obloquium, fr. obloqui. See Oblocutor.]

1. Censorious speech; defamatory language; language that casts contempt on men or their actions; blame; reprehension. Shall names that made yuor city the glory of the earth be mentioned with obloquy and detraction Addison.

2. Cause of reproach; disgrace. [Obs.] Shak.

Syn. — Reproach; odium; censure; contumely; gainsaying; reviling; calumny; slander; detraction.

OBLUCTATION Ob`luc*ta"tion, n. Etym: [L. oblictutio, fr. obluctari to struggle against.]

Defn: A struggle against; resistance; opposition. [Obs.] Fotherby.

OBMUTESCENCE Ob`mu*tes"cence, n. Etym: [L. obmutescens, p.pr of obmutescere to become dumb; ob (see Ob-) + mutescere to grow dumb, fr. mutus dumb.]

1. A becoming dumb; loss of speech. Sir T. Browne.

2. A keeping silent or mute. Paley.

OBNOXIOUS
Ob*nox"ious, a. Etym: [L. obnoxius; ob (see Ob-) + noxius hurtful.
See Noxious.]

1. Subject; liable; exposed; answerable; amenable; — with to. The writings of lawyers, which are tied obnoxious to their particular laws. Bacon. Esteeming it more honorable to live on the public than to be obnoxious to any private purse. Milton. Obnoxious, first or last, To basest things Milton.

2. Liable to censure; exposed to punishment; reprehensible; blameworthy. "The contrived and interested schemes of …obnoxious authors." Bp. Fell. All are obnoxious, and this faulty land, Like fainting Hester, does before you stand Watching your scepter. Waller.

3. Offensive; odious; hateful; as, an obnoxious statesman; a minister
obnoxious to the Whigs. Burke.
— Ob*nox"ious*ly, adv.
— Ob*nox"ious*ness, n. South.

OBNUBILATE Ob*nu"bi*late, v. t. Etym: [L. obnubilatus, p.p. of obnubilare to obscure. See Ob-, and Nubilate.]

Defn: To cloud; to obscure. [Obs.] Burton.
— Ob*nu"bi*la"tion, n. [Obs.] Beddoes.

OBOE
O"boe, n. Etym: [It., fr. F. hautbois. See Hautboy.] (Mus.)

Defn: One of the higher wind instruments in the modern orchestra, yet of great antiquity, having a penetrating pastoral quality of tone, somewhat like the clarinet in form, but more slender, and sounded by means of a double reed; a hautboy. Oboe d'amore Etym: [It., lit., oboe of love], and Oboe di caccia Etym: [It., lit., oboe of the chase], are names of obsolete modifications of the oboe, often found in the scores of Bach and Handel.

OBOIST
O"bo*ist, n.

Defn: A performer on the oboe.

OBOLARY
Ob"o*la*ry, a. Etym: [See Obolus.]

Defn: Possessing only small coins; impoverished. [R.] Lamb.

OBOLE
Ob"ole, n. Etym: [Cf.F. obole. See Obolus.] (Old Pharm.)

Defn: A weight of twelve grains; or, according to some, of ten grains, or half a scruple. [Written also obol.]

OBOLIZE
Ob"o*lize, v. t.

Defn: See Obelize.

OBOLO
Ob"o*lo, n. Etym: [Cf. Obolus.]

Defn: A copper coin, used in the Ionian Islands, about one cent in value.

OBOLUS Ob"o*lus, n.;pl. Oboli. Etym: [L., fr Gr. ( (Gr.Antiq.) (a) A small silver coin of Athens, the sixth part of a drachma, about three cents in value. (b) An ancient weight, the sixth part of a drachm.

OBOMEGOID
Ob`o*me"goid, a. Etym: [Pref. ob- + omegoid.] (Zoöl.)

Defn: Obversely omegoid.

OBOVAL
Ob*o"val, a. Etym: [Pref. ob- + oval.]

Defn: Obovate.

OBOVATE
Ob*o"vate. a. Etym: [Pref. ob- + ovate.] (Bot.)

Defn: Inversely ovate; ovate with the narrow end downward; as, an obovate leaf.

OBREPTION Ob*rep"tion, n. Etym: [L. obreptio, fr. obrepere, obreptum, to creep up to; ob (see Ob-) + repere to creep.]

1. The act of creeping upon with secrecy or by surprise. [Obs.] Cudworth.

2. (Scots Law)

Defn: The obtaining gifts of escheat by fraud or surprise. Bell.

OBREPTITIOUS
Ob`rep*ti"tious, a. Etym: [L. obreptitus. See Obreption.]

Defn: Done or obtained by surprise; with secrecy, or by concealment of the truth. [R.] Cotgrave.

OBROGATE
Ob"ro*gate, v. t. Etym: [L. obrogatus, p.p. of obrogare to obrogate.]

Defn: To annul indirectly by enacting a new and contrary law, instead of by expressly abrogating or repealing the old one. [Obs.] Bailey.

OBROK
Ob"rok, n. Etym: [Russ. obrok'.]
(a) A rent.
(b) A poll tax paid by peasants absent from their lord's estate.
[Russia] Brande & C.

OBSCENE Ob*scene", a/ Etym: [L. obscenus, obscaenus, obscoenus, ill looking, filthy, obscene: cf. F. obscéne.]

1. Offensive to chastity or modesty; expressing of presenting to the mind or view something which delicacy, purity, and decency forbid to be exposed; impure; as, obscene language; obscene pictures. Words that were once chaste, by frequent use grew obscene and uncleanly. I. Watts.

2. Foul; fifthy; disgusting. A girdle foul with grease bobscene attire. Dryden.

3. Inauspicious; ill-omened. [R.] [A Latinism] At the cheerful light, The groaning ghosts and birds obscene take flight. Dryden.

Syn.
— Impure; immodest; indecent; unchaste; lewd.
— Ob*scene"ly, adv.
— Ob*scene"ness, n.

OBSCENITY Ob*scen"i*ty, n.; pl. Obscenities. Etym: [L. obscentias: cf.F. obscénité.]

Defn: That quality in words or things which presents what is offensive to chasity or purity of mind; obscene or impure lanquage or acts; moral impurity; lewdness; obsceneness; as, the obscenity of a speech, or a picture. Mr.Cowley asserts plainly, that obscenity has no place in wit. Dryden. No pardon vile obscenity should find. Pope.

OBSCURANT
Ob*scur"ant, n. Etym: [L. obscurans, p.pr. of obscurare to obscure.]

Defn: One who obscures; one who prevents enlightenment or hinders the progress of knowledge and wisdom. Coleridge.

OBSCURANTISM
Ob*scur"ant*ism, n.

Defn: The system or the principles of the obscurants. C. Kingsley.

OBSCURANTIST
Ob*scur"ant*ist, n.

Defn: Same as Obscurant. Ed. Rev.

OBSCURATION
Ob`scu*ra"tion, n. Etym: [L. obscurativ: cf.F. obscuration. See
Obscure, v. t. ]

Defn: The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse. Sir J. Herschel.

OBSCURE Ob*scure", a. [Compar. Obscurer; superl. Obscurest.] Etym: [L. obscurus, orig., covered; ob- (see Ob-) + a root probably meaning, to cover; cf. L. scutum shield, Skr. sku to cover: cf.F. obscur. Cf.Sky.]

1. Covered over, shaded, or darkened; destitute of light; imperfectly illuminated; dusky; dim. His lamp shall be put out in obscure darkness. Prov. xx. 20.

2. Of or pertaining to darkness or night; inconspicuous to the sight; indistinctly seen; hidden; retired; remote from observation; unnoticed. The obscure bird Clamored the livelong night. Shak. The obscure corners of the earth. Sir J. Davies.

3. Not noticeable; humble; mean. "O base and obscure vulgar." Shak. "An obscure person." Atterbury.

4. Not easily understood; not clear or legible; abstruse or blind; as, an obscure passage or inscription.

5. Not clear, full, or distinct; clouded; imperfect; as, an obscure view of remote objects. Obscure rays (Opt.), those rays which are not luminous or visible, and which in the spectrum are beyond the limits of the visible portion.

Syn. — Dark; dim; darksome; dusky; shadowy; misty; abstruse; intricate; difficult; mysterious; retired; unnoticed; unknown; humble; mean; indistinct.

OBSCURE
Ob*scure", v. t. [imp. & p. p. Obscured; p. pr. & vb. n. Obscuring.]
Etym: [L. obscurare, fr. obscurus: cf. OF. obscurer. See Obscure, a.]

Defn: To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious. They are all couched in a pit hard by Herne's oak, with obscured lights. Shak. Why, 't is an office of discovery, love, And I should be obscured. Shak. There is scarce any duty which has been so obscured by the writings of learned men as this. Wake. And seest not sin obscures thy godlike frame Dryden.

OBSCURE
Ob*scure", v. i.

Defn: To conceal one's self; to hide; to keep dark. [Obs.]
How! There's bad news. I must obscure, and hear it. Beau. & Fl.

OBSCURE
Ob*scure", n.

Defn: Obscurity. [Obs.] Milton.

OBSCURELY
Ob*scure"ly, adv.

Defn: In an obscure manner. Milton.

OBSCUREMENT
Ob*scure"ment, n.

Defn: The act of obscuring, or the state of being obscured; obscuration. Pomfret.

OBSCURENESS
Ob*scure"ness, n.

Defn: Obscurity. Bp. Hall.

OBSCURER
Ob*scur"er, n.

Defn: One who, or that which, obscures.

OBSCURITY
Ob*scu"ri*ty, n. Etym: [L. obscuritas: cf. F. obscurité.]

Defn: The quality or state of being obscure; darkness; privacy; inconspicuousness; unintelligibleness; uncertainty. Yuo are not for obscurity designed. Dryden. They were now brought forth from obscurity, to be contemplated by artists with admiration and despair. Macaulay.

Syn.
— Darkness; dimness; gloom. See Darkness.

OBSECRATE Ob"se*crate, v. t. [imp. & p. p. Obsecrated; p. pr. & vb, n. Obsecrating.] Etym: [L. obsecratus, p.p. of obsecrare, prop., to ask on religious grounds; ob (see Ob-) + sacrare to declare as sacred, from sacer sacred.]

Defn: To beseech; to supplicate; to implore. [R.]. Cockerman.

OBSECRATION
Ob"se*cra"tion, n. Etym: [L. obsecratio: cf. F. obsecration.]

1. The act of obsecrating or imploring; as, the obsecrations of the Litany, being those clauses beginning with "By." Bp. Stillingfeet. Shipley.

2. (Rhet.)

Defn: A figure of speech in which the orator implores the assistance of God or man.

OBSECRATORY
Ob"se*cra*to*ry, a.

Defn: Expressing, or used in, entreaty; supplicatory. [R.] Bp. Hall.

OBSEQUENT Ob"se*quent, a. Etym: [L. obsequens, p.pr. of obsequi; ob (see Ob-) + sequi. See Sequence.]

Defn: Obedient; submissive; obsequious. [Obs.] Fotherby.

OBSEQUIENCE
Ob*se"qui*ence, n.

Defn: Obsequiousness. [R.]

OBSEQUIES
Ob"se*quies, n.pl.

Defn: See Obsequy.

OBSEQUIOUS
Ob*se"qui*ous, a. Etym: [L.obsequiosus, fr. obsequium compliance, fr.
obsequi, fr. obsequi: cf. F. obséquieux, See Obsequent, and cf.
Obsequy.]

1. Promptly obedient, or submissive, to the will of another; compliant; yielding to the desires of another; devoted. [Obs.] His servants weeping, Obsequious to his orders, bear him hither. Addison.

2. Servilely or meanly attentive; compliant to excess; cringing; fawning; as, obsequious flatterer, parasite. There lies ever in "obsequious" at the present the sense of an observance which is overdone, of an unmanly readiness to fall in with the will of another. Trench.

3. Etym: [See Obsequy.]

Defn: Of or pertaining to obsequies; funereal. [R.] "To do obsequious sorrow." Shak.

Syn.
— Compliant; obedient; servile. See Yielding.

OBSEQUIOUSLY
Ob*se"qui*ous*ly, adv.

1. In an obsequious manner; compliantly; fawningly. Dryden.

2. In a manner appropriate to obsequies. [Obs.] Whilst I a while obsequiously lament The untimely fall of virtuous Lancaster. Shak.

OBSEQUIOUSNESS
Ob*se"qui*ous*ness, n.

Defn: The quality or state of being obsequious. South.

OBSEQUY
Ob"se*quy, n.; pl. Obsequies. Etym: [L. obsequiae, pl., funeral
rites, fr. obsequi: cf.F. obsèques. See Obsequent, and cf.
Obsequious.]

1. The last duty or service to a person, rendered after his death; hence, a rite or ceremony pertaining to burial; — now used only in the plural. Spencer. I will…fetch him hence, and solemnly attend, With silent obsequy and funeral train. Milton I will myself Be the chief mourner at his obsequies. Dryden. The funeral obsequies were decently and privately performed by his family J. P. Mahaffy.

2. Obsequiousness. [Obs.] B. Jonson.

OBSERVABLE
Ob*serv"a*ble, a. Etym: [L. observabilis: cf.F. observable.]

Defn: Worthy or capable of being observed; discernible; noticeable;
remarkable. Sir. T. Browne.
The difference is sufficiently observable. Southey.
— Ob*serv"a*ble*ness, n.
— Ob*serv"a*bly, adv.

OBSERVANCE
Ob*serv"ance, n. Etym: [F.observance, L. observantia. See Observant.]

1. The act or practice of observing or noticing with attention; a heeding or keeping with care; performance; — usually with a sense of strictness and fidelity; as, the observance of the Sabbath is general; the strict observance of duties. It is a custom More honored in the breach than the observance. Shak.

2. An act, ceremony, or rite, as of worship or respect; especially, a customary act or service of attention; a form; a practice; a rite; a custom. At dances These young folk kept their observances. Chaucer. Use all the observance of civility. Shak. Some represent to themselves the whole of religion as consisting in a few easy observances. Rogers. O I that wasted time to tend upon her, To compass her with sweet observances! Tennyson.

3. Servile attention; sycophancy. [Obs.] Salads and flesh, such as their haste could get, Served with observance. Chapman. This is not atheism, But court observance. Beau. & Fl.

Syn. — Observance, Observation. These words are discriminated by the two distinct senses of observe. To observe means (1) to keep strictly; as, to observe a fast day, and hence, observance denotes the keeping or heeding with strictness; (2) to consider attentively, or to remark; and hence, observation denotes either the act of observing, or some remark made as the result thereof. We do not say the observation of Sunday, though the word was formerly so used. The Pharisees were curious in external observances; the astronomers are curious in celestial observations. Love rigid honesty, And strict observance of impartial laws. Roscommon.

OBSERVANCY
Ob*serv"an*cy, n.

Defn: Observance. [Obs.]

OBSERVANDUM
Ob*ser`van"dum, n.; pl. Observanda. Etym: [L.]

Defn: A thing to be observed. Swift.

OBSERVANT
Ob*serv"ant, a. Etym: [L. observans, -anits, p. pr. of observare: cf.
F. observant. See Observe.]

1. Taking notice; viewing or noticing attentively; watchful; attentive; as, an observant spectator; observant habits. Wandering from clime to clime observant stray'd. Pope.

2. Submissively attentive; obediently watchful; regardful; mindful; obedient (to); — with of, as, to be observant of rules. We are told how observant Alexander was of his master Aristotle. Sir K. Digby.

OBSERVANT
Ob*serv"ant, n.

1. One who observes forms and rules. [Obs.] Hooker.

2. A sycophantic servant. [Obs.] Silly ducking observants, That stretch their duties nicely. Shak.

3. (R.C.Ch.)

Defn: An Observantine.

OBSERVANTINE
Ob`ser*van"tine, n. Etym: [Fr. observantin.] (R.C.Ch.)

Defn: One of a branch of the Order of Franciscans, who profess to adhere more strictly than the Conventuals to the intention of the founder, especially as to poverty; — called also Observants.

OBSERVANTLY
Ob*serv"ant*ly, adv.

Defn: In an observant manner.

OBSERVATION
Ob`ser*va"tion, n. Etym: [L. observatio: cf.F. observation.]

1. The act or the faculty of observing or taking notice; the act of seeing, or of fixing the mind upon, anything. My observation, which very seldom lies. Shak.

2. The result of an act, or of acts, of observing; view; reflection; conclusion; judgment. In matters of human prudence, we shall find the greatest advantage in making wise observations on our conduct. I. Watts.

3. Hence: An expression of an opinion or judgment upon what one has observed; a remark. "That's a foolish observation." Shak. To observations which ourselves we make We grow more partial for the observer's sake. Pope.

4. Performance of what is prescribed; adherence in practice; observance. [Obs.] We are to procure dispensation or leave to omit the observation of it in such circumstances. Jer. Taylor.

5. (Science) (a) The act of recognizing and noting some fact or occurrence in nature, as an aurora, a corona, or the structure of an animal. (b) Specifically, the act of measuring, with suitable instruments, some magnitude, as the time of an occultation, with a clock; the right ascension of a star, with a transit instrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc. (c) The information so acquired.

Note: When a phenomenon is scrutinized as it occurs in nature, the act is termed an observation. When the conditions under which the phenomenon occurs are artificial, or arranged beforehand by the observer, the process is called an experiment. Experiment includes observation. To take an observation (Naut.), to ascertain the altitude of a heavenly body, with a view to fixing a vessel's position at sea.

Syn.
— Observance; notice; attention; remark; comment; note. See
Observance.

OBSERVATIONAL
Ob`ser*va"tion*al, a.

Defn: Of a pertaining to observation; consisting of, or containing, observations. Chalmers.

OBSERVATION CAR
Ob`ser*va"tion car.

Defn: A railway passenger car made so as to facilitate seeing the scenery en route; a car open, or with glass sides, or with a kind of open balcony at the rear.

OBSERVATIVE
Ob*serv"a*tive, a.

Defn: Observing; watchful.

OBSERVATOR
Ob"ser*va`tor, n. Etym: [L.]

1. One who observes or takes notice. [Obs.] Sir M. Hale.

2. One who makes a remark. [Obs.] Dryden.

OBSERVATORY
Ob*serv"a*to*ry, n.; pl. Observatories. Etym: [Cf. F. observatoire.]

1. A place or building for making observations on the heavenly bodies. The new observatory in Greenwich Park. Evelyn.

2. A building fitted with instruments for making systematic observations of any particular class or series of natural phenomena.

3. A place, as an elevated chamber, from which a view may be observed or commanded.

4. (Mil.)

Defn: A lookout on a flank of a battery whence an officer can note the range and effect of the fire. Farrow.

OBSERVE
Ob*serve", v. t. [imp. & p. p. Observed; p. pr. & vb. n. Observing.]
Etym: [L.observare, observatum; ob (see Ob-) + servare to save,
preserve, keep, heed, observe: cf.F. observer. See Serve.]

1. To take notice of by appropriate conduct; to conform one's action or practice to; to keep; to heed; to obey; to comply with; as, to observe rules or commands; to observe civility. Ye shall observe the feast of unleavened bread. Ex. xii. 17. He wolde no such cursedness observe. Chaucer. Must I budge Must I observe you Shak. With solemn purpose to observe Immutably his sovereign will. Milton.

2. To be on the watch respecting; to pay attention to; to notice with care; to see; to perceive; to discover; as, to observe an eclipse; to observe the color or fashion of a dress; to observe the movements of an army.

3. To express as what has been noticed; to utter as a remark; to say in a casual or incidental way; to remark.

OBSERVE
Ob*serve", v. i.

1. To take notice; to give attention to what one sees or hears; to attend.

2. To make a remark; to comment; — generally with on or upon. I have barely quoted… without observing upon it. Pope.

Syn.
— To remark. See Remark.

OBSERVER
Ob*serv"er, n.

1. One who observes, or pays attention to, anything; especially, one engaged in, or trained to habits of, close and exact observation; as, an astronomical observer. The observed of all observers. Shak. Careful observers may foretell the hour, By sure prognostic, when to dread a shower. Swift.

2. One who keeps any law, custom, regulation, rite, etc.; one who conforms to anything in practice. "Diligent observers of old customs." Spenser. These… hearkend unto observers of times. Deut. xviii. 14.

3. One who fulfills or performs; as, an observer of his promises.

4. A sycophantic follower. [Obs.] Beau. & Fl.

OBSERVERSHIP
Ob*serv"er*ship, n.

Defn: The office or work of an observer.

OBSERVING
Ob*serv"ing, a.

Defn: Giving particular attention; habitually attentive to what passes; as, an observing person; an observing mind. — Ob*serv"ing*ly, adv.

OBSESS Ob*sess", v. t. Etym: [L. obsessus, p.p. of obsidere to besiege; ob (see Ob-) + sedere to sit.]

Defn: To besiege; to beset. Sir T. Elyot.

OBSESSION
Ob*ses"sion, n. Etym: [L. obsessio: cf.F. obsession.]

1. The act of besieging. Johnson.

2. The state of being besieged; — used specifically of a person beset by a spirit from without. Tylor. Whether by obsession or possession, I will not determine. Burton.

OBSIDIAN Ob*sid"i*an, n. Etym: [L. Obsidianus lapis, so named, according to Pliny, after one Obsidius, who discovered it in Ethiopia: cf.F. obsidiane, obsidienne. The later editions of Pliny read Obsianus lapis, and Obsius, instead of Obsidianus lapis, and Obsidius.] (Min.)

Defn: A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.

Note: In a thin section it often exhibits a fluidal structure, marked by the arrangement of microlites in the lines of the flow of the molten mass.

OBSIDIONAL Ob*sid"i*o*nal, a. Etym: [L. obsidionalis, from obsidio a siege, obsidere to besiege: cf.F. obsidional. See Obsess.]

Defn: Of or pertaining to a siege. Obsidional crown (Rom.Antiq.), a crown bestowed upon a general who raised the siege of a beleaguered place, or upon one who held out against a siege.

OBSIGILLATION
Ob*sig`il*la"tion, n. Etym: [L. ob (see Ob-) + sigillum a seal.]

Defn: A sealing up. [Obs.] Maunder.

OBSIGN
Ob*sign", v. t. Etym: [See Obsignate.]

Defn: To seal; to confirm, as by a seal or stamp. [Obs.] Bradford.

OBSIGNATE
Ob*sig"nate, v. t. Etym: [L. obsignated, p.p. of obsignare to seal.
See Ob-, and Sign.]

Defn: To seal; to ratify. [Obs.] Barrow.

OBSIGNATION
Ob`sig*na"tion, n. Etym: [L. obsignatio.]

Defn: The act of sealing or ratifying; the state of being sealed or confirmed; confirmation, as by the Holy Spirit. The spirit of manifestation will but upbraid you in the shame and horror of a sad eternity, if you have not the spirit of obsignation. Jer. Taylor.

OBSIGNATORY
Ob*sig"na*to*ry, a.

Defn: Ratifying; confirming by sealing. [Obs.] Samuel Ward (1643)

OBSOLESCE
Ob`so*lesce", v. i. Etym: [L. obsolescere. See Obsolescent.]

Defn: To become obsolescent. [R.] Fitzed. Hall.

OBSOLESCENCE
Ob`so*les"cence, n. Etym: [See Obsolescent.]

Defn: The state of becoming obsolete.

OBSOLESCENT Ob`so*les"cent, a. Etym: [L. obsolescens, -entis, p.pr. of obsolescere, to wear out gradually, to fall into disuse; ob (see Ob-) + solere to use, be wont.]

Defn: Going out of use; becoming obsolete; passing into desuetude.

OBSOLETE
Ob"so*lete, a. Etym: [L. obsoletus, p.p. of obsolescere. See
Obsolescent.]

1. No longer in use; gone into disuse; disused; neglected; as, an obsolete word; an obsolete statute; — applied chiefly to words, writings, or observances.

2. (Biol.)

Defn: Not very distinct; obscure; rudimental; imperfectly developed; abortive.

Syn. — Ancient; antiquated; old-fashioned; antique; old; disused; neglected. See Ancient.

OBSOLETE
Ob"so*lete, v. i.

Defn: To become obsolete; to go out of use. [R.] Fitzed. Hall.

OBSOLETELY
Ob"so*lete*ly, adv.

Defn: In an obsolete manner.

OBSOLETENESS
Ob"so*lete*ness, n.

1. The state of being obsolete, or no longer used; a state of desuetude.

2. (Biol.)

Defn: Indistinctness; want of development.

OBSOLETISM
Ob"so*let*ism, n.

Defn: A disused word or phrase; an archaism. Fitzed. Hall.

OBSTACLE
Ob"sta*cle, n. Etym: [F., fr. L. obstaculum, fr. obstare to
withstand, oppose; ob (see Ob-) + stare to stand. See Stand. and cf.
Oust, v.]

Defn: That which stands in the way, or opposes; anything that hinders progress; a hindrance; an obstruction, physical or moral. If all obstacles were cut away. And that my path were even to the crown. Shak.

Syn. — Impediment; obstuction; hindrance; difficulty. See Impediment, and Obstruction.

OBSTANCY
Ob"stan*cy, n. Etym: [L. obstantia, fr. obstans, p.pr. of obstare.
See Obstacle.]

Defn: Opposition; impediment; obstruction. [Obs.] B. Jonson.

OBSTETRIC; OBSTETRICAL Ob*stet"ric, Ob*stet"ric*al, a. Etym: [L. obstetricius, fr. obstetrix, -icis, a midwife, fr. obstare to stand before: cf.F. obstétrique. See Obstacle.]

Defn: Of or pertaining to midwifery, or the delivery of women in childbed; as, the obstetric art. Obstetrical toad (Zoöl.), a European toad of the genus Alytes, especially A. obstetricans. The eggs are laid in a string which the male winds around his legs, and carries about until the young are hatched.

OBSTETRICATE Ob*stet"ri*cate, v. i. Etym: [L. obstetricatus, p.p. of obstetricare, fr. obstetrix.]

Defn: To perform the office of midwife. [Obs.] "Nature does obstetricate." Evelyn.

OBSTETRICATE
Ob*stet"ri*cate, v. t.

Defn: To assist as a midwife. [Obs.] E. Waterhouse.

OBSTETRICATION
Ob*stet"ri*ca"tion, n.

Defn: The act of assisting as a midwife; delivery. [Obs.] Bp. Hall.

OBSTETRICIAN
Ob`ste*tri"cian, n.

Defn: One skilled in obstetrics; an accoucheur.

OBSTETRICIOUS
Ob`ste*tri"cious, a. Etym: [See Obstetric.]

Defn: Serving to assist childbirth; obstetric; hence, facilitating any bringing forth or deliverance. [Obs.] Yet is all human teaching but maieutical, or obstetricious. Cudworth.

OBSTETRICS
Ob*stet"rics, n. Etym: [Cf. F. obstétrique. See Obstetric.]

Defn: The science of midwifery; the art of assisting women in parturition, or in the trouble incident to childbirth.

OBSTETRICY
Ob*stet"ri*cy, n.

Defn: Obstetrics. [R.] Dunglison.

OBSTINACY
Ob"sti*na*cy, n. Etym: [See Obstinate.]

1. A fixedness in will, opinion, or resolution that can not be shaken at all, or only with great difficulty; firm and usually unreasonable adherence to an opinion, purpose, or system; unyielding disposition; stubborness; pertinacity; persistency; contumacy. You do not well in obstinacy To cavil in the course of this contract. Shak. To shelter their ignorance, or obstinacy, under the obscurity of their terms. Locke.

2. The quality or state of being difficult to remedy, relieve, or subdue; as, the obstinacy of a disease or evil.

Syn. — Pertinacity; firmness; resoluteness; inflexibility; persistency; stubbornness; perverseness; contumacy. — Obstinacy, Pertinacity. Pertinacity denotes great firmness in holding to a thing, aim, etc. Obstinacy is great firmness in holding out against persuasion, attack, etc. The former consists in adherence, the latter in resistance. An opinion is advocated with pertinacity or defended with obstinacy. Pertinacity is often used in a good sense; obstinacy generally in a bad one. "In this reply was included a very gross mistake, and if with pertinacity maintained, a capital error." Sir T. Browne. "Every degree of obstinacy in youth is one step to rebellion." South.

OBSTINATE Ob"sti*nate, a. Etym: [L. obstinatus, p.p. of obstinare to set about a thing with firmness, to persist in; ob (see Ob-) + a word from the root of stare to stand. See Stand, and cf.Destine.]

1. Pertinaciously adhering to an opinion, purpose, or course; persistent; not yielding to reason, arguments, or other means; stubborn; pertinacious; — usually implying unreasonableness. I have known great cures done by obstinate resolution of drinking no wine. Sir W. Temple. No ass so meek, no ass so obstinate. Pope. Of sense and outward things. Wordsworth.

2. Not yielding; not easily subdued or removed; as, obstinate fever; obstinate obstructions.

Syn.
— Stubborn; inflexible; immovable; firm; pertinacious; persistent;
headstrong; opinionated; unyielding; refractory; contumacious. See
Stubborn.
— Ob"sti*nate*ly, adv.
— Ob"sti*nate*ness, n.

OBSTINATION
Ob`sti*na"tion, n. Etym: [L. obstinatio.]

Defn: Obstinacy; stubbornness. [Obs.] Jer. Taylor.

OBSTIPATION Ob`sti*pa"tion, n. Etym: [L. obstipatio a close pressure; ob (see Ob- ) + stipare to press.]

1. The act of stopping up, as a passage. [Obs.] Bailey.

2. (Med.)

Defn: Extreme constipation. [Obs.] Hooper.

OBSTREPEROUS Ob*strep"er*ous, a. Etym: [L. obstreperus, from obstrepere to make a noise at; ob (see Ob-) + strepere to make a noise.]

Defn: Attended by, or making, a loud and tumultuous noise; clamorous;
noisy; vociferous. "The obstreperous city." Wordsworth. "Obstreperous
approbation." Addison.
Beating the air with their obstreperous beaks. B. Jonson.
— Ob*strep"er*ous*ly, adv.
— Ob*strep"er*ous*ness, n.

OBSTRICTION Ob*stric"tion, n. Etym: [L. obstringere, obstrictum, to bind to or about.]

Defn: The state of being constrained, bound, or obliged; that which constrains or obliges; obligation; bond. [R.] Milton.

OBSTRINGE
Ob*stringe", v. t. Etym: [See Obstriction.]

Defn: To constrain; to put under obligation. [R.] Bp. Gardiner.

OBSTRUCT
Ob*struct", v. t. [imp. & p. p. Obstructed; p. pr. & vb. n.
Obstructing.] Etym: [L. obstructus, p.p. of obstruere to build up
before or against, to obstruct; ob (see Ob-) + struere to pile up.
See Structure.]

1. To block up; to stop up or close, as a way or passage; to place an obstacle in, or fill with obstacles or impediments that prevent or hinder passing; as, to obstruct a street; to obstruct the channels of the body. 'T is the obstructed paths of sound shall clear. Pope.

2. To be, or come, in the way of; to hinder from passing; to stop; to impede; to retard; as, the bar in the harbor obstructs the passage of ships; clouds obstruct the light of the sun; unwise rules obstruct legislation. "Th' impatience of obstructed love." Johnson.

Syn. — To bar; barricade; stop; arrest; check; interrupt; clog; choke; impede; retard; embarrass; oppose.

OBSTRUCTER
Ob*struct"er, n.

Defn: One who obstructs or hinders.

OBSTRUCTION
Ob*struc"tion, n. Etym: [L.obstructio.]

1. The act of obstructing, or state of being obstructed.

2. That which obstructs or impedes; an obstacle; an impediment; a hindrance. A popular assembly free from obstruction. Swift.

3. The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death. [Poetic] To die, and go we know not where, To lie in cold obstruction, and to rot. Shak.

Syn. — Obstacle; bar; barrier; impediment; clog; check; hindrance. — Obstruction, Obstacle. The difference between these words is that indicated by their etymology; an obstacle is something standing in the way; an obstruction is something put in the way. Obstacle implies more fixedness and is the stronger word. We remove obstructions; we surmount obstacles. Disparity in age seems a greater obstacle to an intimate friendship than inequality of fortune. Collier. The king expected to meet with all the obstructions and difficulties his enraged enemies could lay in his way. Clarendon.

OBSTRUCTIONISM
Ob*struc"tion*ism, n.

Defn: The act or the policy of obstructing progress. Lond. Lit.
World.

OBSTRUCTIONIST
Ob*struc"tion*ist, n.

Defn: One who hinders progress; one who obstructs business, as in a legislative body. — a.

Defn: Of or pertaining to obstructionists. [Recent]

OBSTRUCTIVE
Ob*struct"ive, a. Etym: [Cf.F. obstrictif.]

Defn: Tending to obstruct; presenting obstacles; hindering; causing
impediment.
— Ob*struct"ive*ly, adv.

OBSTRUCTIVE
Ob*struct"ive, n.

Defn: An obstructive person or thing.

OBSTRUENT
Ob"stru*ent, a. Etym: [L. obstruens, p.pr. of obstruere. See
Obstruct.]

Defn: Causing obstruction; blocking up; hindering; as, an obstruent medicine. Johnson.

OBSTRUENT
Ob"stru*ent, n.

Defn: Anything that obstructs or closes a passage; esp., that which obstructs natural passages in the body; as, a medicine which acts as an obstruent.

OBSTUPEFACTION
Ob*stu`pe*fac"tion, n. Etym: [L. obstuperfacere to stupefy.]

Defn: See Stupefaction. [Obs.] Howell.

OBSTUPEFACTIVE
Ob*stu`pe*fac"tive, a.

Defn: Stupefactive. [Obs.]

OBSTUPEFY
Ob*stu"pe*fy, v. t. Etym: [Cf.L. obstupefacere. See Ob-, and
Stupefy.]

Defn: See Stupefy. [Obs.]

OBTAIN
Ob*tain", v. t. [imp. & p. p. Obtained; p. pr. & vb. n. Obtaining.]
Etym: [F. obtenir, L. obtinere; ob (see Ob-) + tenere to hold. See
Tenable.]

1. To hold; to keep; to possess. [Obs.] His mother, then, is mortal, but his Sire He who obtains the monarchy of heaven. Milton.

2. To get hold of by effort; to gain possession of; to procure; to
acquire, in any way.
Some pray for riches; riches they obtain. Dryden.
By guileful fair words peace may be obtained. Shak.
It may be that I may obtain children by her. Gen. xvi. 2.

Syn. — To attain; gain; procure; acquire; win; earn. See Attain. — To Obtain, Get, Gain, Earn, Acquire. The idea of getting is common to all these terms. We may, indeed, with only a slight change of sense, substitute get for either of them; as, to get or to gain a prize; to get or to obtain an employment; to get or to earn a living; to get or to acquire a language. To gain is to get by striving; and as this is often a part of our good fortune, the word gain is peculiarly applicable to whatever comes to us fortuitously. Thus, we gain a victory, we gain a cause, we gain an advantage, etc. To earn is to deserve by labor or service; as, to earn good wages; to earn a triumph. Unfortunately, one does not always get or obtain what he has earned. To obtain implies desire for possession, and some effort directed to the attainment of that which is not immediately within our reach. Whatever we thus seek and get, we obtain, whether by our own exertions or those of others; whether by good or bad means; whether permanently, or only for a time. Thus, a man obtains an employment; he obtains an answer to a letter, etc. To acquire is more limited and specific. We acquire what comes to us gradually in the regular exercise of our abilities, while we obtain what comes in any way, provided we desire it. Thus, we acquire knowledge, property, honor, reputation, etc. What we acquire becomes, to a great extent, permanently our own; as, to acquire a language; to acquire habits of industry, etc.

OBTAIN
Ob*tain", v. i.

1. To become held; to gain or have a firm footing; to be recognized or established; to subsist; to become prevalent or general; to prevail; as, the custom obtains of going to the seashore in summer. Sobriety hath by use obtained to signify temperance in drinking. Jer. Taylor. The Theodosian code, several hundred years after Justinian's time, did obtain in the western parts of Europe. Baker.

2. To prevail; to succeed. [R.] Evelyn. So run that ye may obtain. 1 Cor. ix. 24. There is due from the judge to the advocate, some commendation, where causes are fair pleaded; especially towards the side which obtaineth not. Bacon.

OBTAINABLE
Ob*tain"a*ble, a.

Defn: Capable of being obtained.

OBTAINER
Ob*tain"er, n.

Defn: One who obtains.

OBTAINMENT
Ob*tain"ment, n.

Defn: The act or process of obtaining; attainment. Milton.

OBTECTED
Ob*tect"ed, a. Etym: [L. obtectus, p.p. of obtegere to cover over.]

1. Covered; protected. [Obs.]

2. (Zoöl.)

Defn: Covered with a hard chitinous case, as the pupa of certain files.

OBTEMPER
Ob*tem"per, v. t. & i. Etym: [See Obtemperate.] (Scots Law)

Defn: To obey (a judgment or decree).

OBTEMPERATE
Ob*tem"per*ate, v. t. Etym: [L. obtemperare, obtemperatum to obey.]

Defn: To obey. [Obs.] Johnson.

OBTEND
Ob*tend", v. t. [imp. & p. p. Obtended; p. pr. & vb. n. Obtending.]
Etym: [L.obtendere, obtentum, to stretch or place before or against;
ob (see Ob-) + tendere to stretch.]

1. To oppose; to hold out in opposition. [Obs.] Dryden.

2. To offer as the reason of anything; to pretend. [Obs.] Dryden

OBTENEBRATION
Ob*ten`e*bra"tion, n. Etym: [L. obtenebrate to make dark.]

Defn: The act of darkening; the state of being darkened; darkness.
[Obs.]
In every megrim or vertigo, there is an obtenebration joined with a
semblance of turning round. Bacon.

OBTENSION
Ob*ten"sion, n. Etym: [L. obtentio. See Obtend.]

Defn: The act of obtending. [Obs.] Johnson.

OBTEST
Ob*test", v. t. [imp. & p. p. Obtested; p. pr. & vb. n. Obtesting.]
Etym: [L. obtestari; ob (see Ob-) + testari to witness, fr. testis a
witness.]

1. To call to witness; to invoke as a witness. [R.] Dryden.

2. To beseech; to supplicate; to beg for. [R.]

OBTEST
Ob*test", v. i.

Defn: To protest. [R.] E. Waterhouse.

OBTESTATION
Ob`tes*ta"tion, n. Etym: [L. obtestatio.]

Defn: The act of obtesting; supplication; protestation. [R.]
Antonio asserted this with great obtestation. Evelyn.

OBTRECTATION Ob`trec*ta"tion, n. Etym: [L. obtrectatio, from obtrectare to detract from through envy. See Detract.]

Defn: Slander; detraction; calumny. [Obs.] Barrow.

OBTRUDE
Ob*trude", v. t. [imp. & p. p. Obtruded, p. pr. & vb. n. Obtruding.]
Etym: [L. obtrudere, obtrusum; ob (see Ob-) + trudere to thrust. See
Threat.]

1. To thrust impertinently; to present without warrant or solicitation; as, to obtrude one's self upon a company. The objects of our senses obtrude their particular ideas upon our minds, whether we will or no. Lock.

2. To offer with unreasonable importunity; to urge unduly or against the will. Milton.

OBTRUDE
Ob*trude", v. i.

Defn: To thrust one's self upon a company or upon attention; to intrude.

Syn. — To Obtrude, Intrude. To intrude is to thrust one's self into a place, society, etc., without right, or uninvited; to obtrude is to force one's self, remarks, opinions, etc., into society or upon persons with whom one has no such intimacy as to justify such boldness.

OBTRUDER
Ob*trud"er, n.

Defn: One who obtrudes. Boyle.

OBTRUNCATE
Ob*trun"cate, v. t. Etym: [L. obtruncatus, p.p. of obtruncare.]

Defn: To deprive of a limb; to lop. [R.]

OBTRUNCATION
Ob`trun*ca"tion, n. Etym: [L. obtruncatio.]

Defn: The act of lopping or cutting off. [R.] Cockeram.

OBTRUSION
Ob*tru"sion, n. Etym: [L. obtrusio. See Obtrude.]

1. The act of obtruding; a thrusting upon others by force or unsolicited; as, the obtrusion of crude opinions on the world.

2. That which is obtruded. Milton.

OBTRUSIONIST
Ob*tru"sion*ist, n.

Defn: One who practices or excuses obtrusion. [R.] Gent. Mag.

OBTRUSIVE
Ob*tru"sive, a.

Defn: Disposed to obtrude; inclined to intrude or thrust one's self
or one's opinions upon others, or to enter uninvited; forward;
pushing; intrusive.
— Ob*tru"sive*ly, adv.
— Ob*tru"sive*ness, n.
Not obvious, not obtrusive, but retired. Milton.

OBTUND
Ob*tund", v. t. [imp. & p. p. Obtunded; p. pr. & vb. n. Obtunding.]
Etym: [L. obtundere, obtusum; ob (see Ob-) + tundere to strike or
beat. See Stutter.]

Defn: To reduce the edge, pungency, or violent action of; to dull; to blunt; to deaden; to quell; as, to obtund the acrimony of the gall. [Archaic] Harvey. They…have filled all our law books with the obtunding story of their suits and trials. Milton.

OBTUNDENT
Ob*tund"ent, n. Etym: [L. obtundens, p.pr. of obtundere.] (Med.)

Defn: A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; — nearly the same as demulcent. Forsyth.

OBTUNDER
Ob*tund"er, n. (Med.)

Defn: That which obtunds or blunts; especially, that which blunts sensibility.

OBTURATE
Ob"tu*rate, v. t. [imp. & p. p. Obturated; p. pr. & vb. n.
Obturating.] [L. obturatus; p.p. of obturare.]

Defn: To stop or close, as an opening; specif., (Ordnance),

Defn: to stop (a gun breech) so as to prevent the escape of gas in firing.

OBTURATION
Ob`tu*ra"tion, n. Etym: [L. obturare to stop up: cf.F. obturation.]

Defn: The act of stopping up, or closing, an opening. "Deaf by an outward obturation." Bp. Hall.

OBTURATOR Ob"tu*ra`tor, n. Etym: [NL., fr. L. obturare to stop up: cf.F. obturateur.]

1. That which closes or stops an opening.

2. (Surg.)

Defn: An apparatus designed to close an unnatural opening, as a fissure of the palate.

OBTURATOR
Ob"tu*ra`tor, a. (Anat.)

Defn: Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve. Obturator foramen (Anat.), an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.

OBTUSANGULAR
Ob*tus"an`gu*lar, a.

Defn: See Obstuseangular.

OBTUSE Ob*tuse". a. [Compar. Obtuser (; superl. Obtusest.] Etym: [L. obtusus, p.p. of obtundere to blunt: cf. F. obtus. See Obtund.]

1. Not pointed or acute; blunt; — applied esp. to angles greater than a right angle, or containing more than ninety degrees.

2. Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses. Milton.

3. Dull; deadened; as, obtuse sound. Johnson.

OBTUSE-ANGLED; OBTUSE-ANGULAR
Ob*tuse"-an`gled, ob*tuse"-an`gu*lar, a.

Defn: Having an obtuse angle; as, an obtuse-angled triangle.

OBTUSELY
Ob*tuse"ly, adv.

Defn: In an obtuse manner.

OBTUSENESS
Ob*tuse"ness, n.

Defn: State or quality of being obtuse.

OBTUSION
Ob*tu"sion (, n. Etym: [L. obtusio, from obtundere to blunt. See
Obtund.]

1. The act or process of making obtuse or blunt.

2. The state of being dulled or blunted; as, the obtusion of the senses. Harvey.

OBTUSITY
Ob*tu"si*ty, n.

Defn: Obtuseness. Lond. Quart. Rev.

OBUMBRANT
Ob*um"brant, a. Etym: [L.obumbrans, p.pr.] (Zoöl.)

Defn: Overhanging; as, obumbrant feathers.

OBUMBRATE Ob*um"brate, v. t. Etym: [L. obumbratus, p.p. of obumbrare to overshadow, cloud; ob + umbrare to shade.]

Defn: To shade; to darken; to cloud. [R.] Howell.

OBUMBRATION
Ob`um*bra"tion, n. Etym: [L. obumbratio.]

Defn: Act of darkening or obscuring. [R.] Sir T. More.

OBUNCOUS
Ob*un"cous, a. Etym: [L. obuncus; ob (see Ob-) + uncus hooked.]

Defn: Hooked or crooked in an extreme degree. Maunder.

OBVENTION Ob*ven"tion, n. Etym: [L. obvention, fr. obvenire to come before or in the way of, to befall; ob (see Ob-) + venire to come: cf.F. obvention.]

Defn: The act of happening incidentally; that which happens casually; an incidental advantage; an occasional offering. [Obs.] "Tithes and other obventions." Spenser. Legacies bequeathed by the deaths of princes and great persons, and other casualities and obventions. Fuller.

OBVERSANT Ob*vers"ant, a. Etym: [L. obversans, p.pr. of obversari to hover before; ob (see Ob-) + versare to move about.]

Defn: Conversant; familiar. [Obs.] Bacon.

OBVERSE
Ob*verse", a. Etym: [L. obversus, p.p. of obvertere. See Obvert.]

Defn: Having the base, or end next the attachment, narrower than the top, as a leaf.

OBVERSE
Ob"verse, n. Etym: [Cf.F. obverse, obvers. See Obverse, a.]

1. The face of a coin which has the principal image or inscription upon it; — the other side being the reverse.

2. Anything necessarily involved in, or answering to, another; the more apparent or conspicuous of two possible sides, or of two corresponding things. The fact that it [a belief] invariably exists being the obverse of the fact that there is no alternative belief. H. Spencer.

OBVERSELY
Ob*verse"ly, adv.

Defn: In an obverse manner.

OBVERSION
Ob*ver"sion, n. Etym: [L. obversio a turning towards.]

1. The act of turning toward or downward.

2. (Logic)

Defn: The act of immediate inference, by which we deny the opposite of anything which has been affirmed; as, all men are mortal; then, by obversion, no men are immortal. This is also described as "immediate inference by privative conception." Bain.

OBVERT
Ob*vert", v. t. [imp. & p. p. Obverted; p. pr. & vb. n. Obverting.]
Etym: [L. obvertere; ob (see Ob-) + vertere to turn. See Verse.]

Defn: To turn toward.
If its base be obverted towards us. I. Watts.

OBVIATE
Ob"vi*ate, v. t. [imp. & p. p. Obviated; p. pr. & vb. n. Obviating.]
Etym: [L. obviare; ob (see Ob-) + viare to go, fr. via way. See
Voyage.]

1. To meet in the way. [Obs.] Not to stir a step to obviate any of a different religion. Fuller.

2. To anticipate; to prevent by interception; to remove from the way or path; to make unnecessary; as, to obviate the necessity of going. To lay down everything in its full light, so as to obviate all exceptions. Woodward.

OBVIATION
Ob`vi*a"tion, n.

Defn: The act of obviating, or the state of being obviated.

OBVIOUS
Ob"vi*ous, a. Etym: [L. obvius; ob (see Ob-) + via way. See Voyage.]

1. Opposing; fronting. [Obs.] To the evil turn My obvious breast. Milton.

2. Exposed; subject; open; liable. [Obs.] "Obvious to dispute." Milton.

3. Easily discovered, seen, or understood; readily perceived by the eye or the intellect; plain; evident; apparent; as, an obvious meaning; an obvious remark. Apart and easy to be known they lie, Amidst the heap, and obvious to the eye. Pope.

Syn.
— Plain; clear; evident. See Manifest.
— Ob"vi*ous*ly, adv.
— Ob"vi*ous-ness, n.

OBVOLUTE; OBVOLUTED Ob"vo*lute, Ob`vo*lu"ted, a. Etym: [L. obvolutus, p.p. of obvolvere to wrap round; ob (see Ob-) + volvere to roll.]

Defn: Overlapping; contorted; convolute; — applied primarily, in botany, to two opposite leaves, each of which has one edge overlapping the nearest edge of the other, and secondarily to a circle of several leaves or petals which thus overlap.

OBY
O"by, n.

Defn: See Obi.

OCA
O"ca, n. Etym: [Sp.] (Bot.)

Defn: A Peruvian name for certain species of Oxalis (O. crenata, and
O. tuberosa) which bear edible tubers.

OCARINA
Oc`a*ri"na, n. [Cf. It. carino pretty.] (Mus.)

Defn: A kind of small simple wind instrument.

OCCAMY
Oc"ca*my, n. Etym: [A corruption of alchemy.]

Defn: An alloy imitating gold or silver. [Written also ochimy, ochymy, etc.]

OCCASION
Oc*ca"sion, n. Etym: [F. occasion, L. occasio, fr.occidere, occasum,
to fall down; ob (see Ob-) + cadere to fall. See Chance, and cf.
Occident.]

1. A falling out, happening, or coming to pass; hence, that which falls out or happens; occurrence; incident. The unlooked-for incidents of family history, and its hidden excitements, and its arduous occasions. I. Taylor.

2. A favorable opportunity; a convenient or timely chance;
convenience.
Sin, taking occasion by the commandment, deceived me. Rom. vii. 11.
I'll take the occasion which he gives to bring Him to his death.
Waller.

3. An occurrence or condition of affairs which brings with it some unlooked-for event; that which incidentally brings to pass an event, without being its efficient cause or sufficient reason; accidental or incidental cause. Her beauty was the occasion of the war. Dryden.

4. Need; exigency; requirement; necessity; as, I have no occasion for
firearms.
After we have served ourselves and our own occasions. Jer. Taylor.
When my occasions took me into France. Burke.

5. A reason or excuse; a motive; a persuasion. Whose manner was, all passengers to stay, And entertain with her occasions sly. Spenser. On occasion, in case of need; in necessity; as convenience requires; occasionally. "That we might have intelligence from him on occasion," De Foe.

Syn.
— Need; incident; use. See Opportunity.

OCCASION
Oc*ca"sion, v. t. [imp. & p. p. Occasioned; p. pr. & vb. n.
Occasioning.] Etym: [Cf.F. occasionner.]

Defn: To give occasion to; to cause; to produce; to induce; as, to
occasion anxiety. South.
If we inquire what it is that occasions men to make several
combinations of simple ideas into distinct modes. Locke.

OCCASIONABLE
Oc*ca"sion*a*ble, a.

Defn: Capable of being occasioned or caused. Barrow.

OCCASIONAL
Oc*ca"sion*al, a. Etym: [Cf.F. occasionnel.]

1. Of or pertaining to an occasion or to occasions; occuring at times, but not constant, regular, or systematic; made or happening as opportunity requires or admits; casual; incidental; as, occasional remarks, or efforts. The… occasional writing of the present times. Bagehot.

2. Produced by accident; as, the occasional origin of a thing. [Obs.] Sir T. Browne. Occasional cause (Metaph.), some circumstance preceding an effect which, without being the real cause, becomes the occasion of the action of the efficient cause; thus, the act of touching gunpowder with fire is the occasional, but not the efficient, cause of an explosion.

OCCASIONALISM
Oc*ca"sion*al*ism, n. (Metaph.)

Defn: The system of occasional causes; — a name given to certain theories of the Cartesian school of philosophers, as to the intervention of the First Cause, by which they account for the apparent reciprocal action of the soul and the body.

OCCASIONALITY
Oc*ca`sion*al"i*ty, n.

Defn: Quality or state of being occasional; occasional occurrence.
[R.]

OCCASIONALLY
Oc*ca"sion*al*ly, adv.

Defn: In an occasional manner; on occasion; at times, as convenience requires or opportunity offers; not regularly. Stewart. The one, Wolsey, directly his subject by birth; the other, his subject occasionally by his preferment. Fuller.

OCCASIONATE
Oc*ca"sion*ate, v. t.

Defn: To occasion. [Obs.]
The lowest may occasionate much ill. Dr. H. More.

OCCASIONER
Oc*ca"sion*er, n.

Defn: One who, or that which, occasions, causes, or produces. Bp.
Sanderson.

OCCASIVE Oc*ca"sive, a. Etym: [L. occasivus, fr. occasus a going down, setting of the heavenly bodies, fr. occidere to fall or down. See Occasion.]

Defn: Of or pertaining to the setting sun; falling; descending; western.

OCCECATION Oc*ce*ca"tion, n. Etym: [L. occaecatio, fr. occaecare to make blind; ob + caecare to blind, fr. caecus blind.]

Defn: The act of making blind, or the state of being blind. [R.]
"This inward occecation." Bp. Hall.

OCCIDENT Oc"ci*dent, n. Etym: [F., fr. L. occidens, occidentis, fr. occidents, p.pr. of occidere to fall or go down. See Occasion.]

Defn: The part of the horizon where the sun last appears in the evening; that part of the earth towards the sunset; the west; — opposed to orient. Specifically, in former times, Europe as opposed to Asia; now, also, the Western hemisphere. Chaucer. I may wander from east to occident. Shak.

OCCIDENTAL
Oc`ci*den"tal, a. Etym: [L. occidentalis; cf. F.occidental.]

1. Of, pertaining to, or situated in, the occident, or west; western; — opposed to oriental; as, occidental climates, or customs; an occidental planet.

2. Possessing inferior hardness, brilliancy, or beauty; — used of inferior precious stones and gems, because those found in the Orient are generally superior.

OCCIDENTALS
Oc`ci*den"tals, n.pl. (Eccl.)

Defn: Western Christians of the Latin rite. See Orientals. Shipley.

OCCIDUOUS
Oc*cid"u*ous, a. Etym: [L. occiduus, fr. occidere to go down.]

Defn: Western; occidental. [R.] Blount.

OCCIPITAL
Oc*cip"i*tal, a. Etym: [Cf. F. occipital.] (Anat.)

Defn: Of or pertaining to the occiput, or back part of the head, or to the occipital bone. Occipital bone (Anat.), the bone which forms the posterior segment of the skull and surrounds the great foramen by which the spinal cord leaves the cranium. In the higher vertebrates it is usually composed of four bones, which become consolidated in the adult. — Occipital point (Anat.), the point of the occiput in the mesial plane farthest from the ophryon.

OCCIPITAL
Oc*cip"i*tal, n. (Anat.)

Defn: The occipital bone.

OCCIPITO-
Oc*cip"i*to- (. Etym: [See Occiput.]

Defn: A combining form denoting relation to, or situation near, the occiput; as, occipito-axial; occipito-mastoid.

OCCIPITOAXIAL
Oc*cip`i*to*ax"i*al, a. (Anat.)

Defn: Of or pertaining to the occipital bone and second vertebra, or axis.

OCCIPUT
Oc"ci*put, n.; pl. L. Occipita, E. Occiputs. Etym: [L., fr. ob (see
Ob-) + caput head. See Chief.]

1. (Anat.)

Defn: The back, or posterior, part of the head or skull; the region of the occipital bone.

2. (Zoöl.)

Defn: A plate which forms the back part of the head of insects.

OCCISION Oc*ci"sion, n. Etym: [L.occisio, fr. occidere, occisium, to cut down, to kill; ob (see Ob-) + caedere to cut.]

Defn: A killing; the act of killing. [Obs.] Sir M. Hale.

OCCLUDE Oc*clude", v. t. Etym: [L. occludere, occlusum; ob (see Ob-) + claudere to shut.]

1. To shut up; to close. Sir T. Browne.

2. (Chem.)

Defn: To take in and retain; to absorb; — said especially with respect to gases; as iron, platinum, and palladium occlude large volumes of hydrogen.

OCCLUDENT
Oc*clud"ent, a. Etym: [L.occludens, p.pr. of occludere.]

Defn: Serving to close; shutting up.
— n.

Defn: That which closes or shuts up. Sterne.

OCCLUSE
Oc*cluse", a. Etym: [L. occlusus, p.p. See Occlude.]

Defn: Shut; closed. [Obs.] Holder.

OCCLUSION
Oc*clu"sion, n. Etym: [See Occlude.]

1. The act of occluding, or the state of being occluded. Constriction and occlusion of the orifice. Howell.

2. (Med.)

Defn: The transient approximation of the edges of a natural opening; imperforation. Dunglison. Occlusion of gases (Chem. & Physics), the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal; thus, palladium absorbs, or occludes, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed.

OCCRUSTATE
Oc*crus"tate, v. t. Etym: [See Ob-, and Crustated.]

Defn: To incrust; to harden. [Obs.] Dr. H. More.

OCCULT Oc*cult", a. Etym: [L. occultus, p.p. of occulere to cover up, hide; ob (see Ob-) + a root prob.akin to E. hell: cf. F. occulte.]

Defn: Hidden from the eye or the understanding; inviable; secret; concealed; unknown. It is of an occult kind, and is so insensible in its advances as to escape observation. I. Taylor. Occult line (Geom.), a line drawn as a part of the construction of a figure or problem, but not to appear in the finished plan. — Occult qualities, those qualities whose effects only were observed, but the nature and relations of whose productive agencies were undetermined; — so called by the schoolmen. — Occult sciences, those sciences of the Middle Ages which related to the supposed action or influence of occult qualities, or supernatural powers, as alchemy, magic, necromancy, and astrology.

OCCULT
Oc*cult", v. t.

Defn: To eclipse; to hide from sight.

OCCULTATION Oc`cul*ta"tion, n. Etym: [L. occultatio a hiding, fr. occultare, v. intens. of occulere: cf.F. occultation. See Occult.]

1. (Astron.)

Defn: The hiding of a heavenly body from sight by the intervention of some other of the heavenly bodies; — applied especially to eclipses of stars and planets by the moon, and to the eclipses of satellites of planets by their primaries.

2. Fig.: The state of being occult. The reappearance of such an author after those long periods of occultation. Jeffrey. Circle of perpetual occultation. See under Circle.

OCCULTED
Oc*cult"ed, a.

1. Hidden; secret. [Obs.] Shak.

2. (Astron.)

Defn: Concealed by the intervention of some other heavenly body, as a star by the moon.

OCCULTING
Oc*cult"ing, n.

Defn: Same as Occultation.

OCCULTISM
Oc*cult"ism, n.

Defn: A certain Oriental system of theosophy. A. P. Sinnett.

OCCULTIST
Oc*cult"ist, n.

Defn: An adherent of occultism.

OCCULTLY
Oc*cult"ly, adv.

Defn: In an occult manner.

OCCULTNESS
Oc*cult"ness, n.

Defn: State or quality of being occult.

OCCUPANCY
Oc"cu*pan*cy, n. Etym: [See Occupant.]

Defn: The act of taking or holding possession; possession; occupation. Title by occupancy (Law), a right of property acquired by taking the first possession of a thing, or possession of a thing which belonged to nobody, and appropriating it. Blackstone. Kent.

OCCUPANT Oc"cu*pant, n. Etym: [L. occupans, p.pr. of occupare: cf. F. occupant. See Occupy.]

1. One who occupies, or takes possession; one who has the actual use or possession, or is in possession, of a thing.

Note: This word, in law, sometimes signifies one who takes the first possession of a thing that has no owner.

2. A prostitute. [Obs.] Marston.

OCCUPATE
Oc"cu*pate, v. t. Etym: [L. occupatus, p.p. of occupare. See Occupy.]

Defn: To occupy. [Obs.] Bacon.

OCCUPATION
Oc`cu*pa"tion, n. Etym: [L. occupatio: cf.F. occupation.]

1. The act or process of occupying or taking possession; actual possession and control; the state of being occupied; a holding or keeping; tenure; use; as, the occupation of lands by a tenant.

2. That which occupies or engages the time and attention; the principal business of one's life; vocation; employment; calling; trade. Absence of occupation is not rest. Cowper. Occupation bridge (Engin.), a bridge connecting the parts of an estate separated by a railroad, a canal, or an ordinary road.

Syn. — Occupancy; possession; tenure; use; employment; avocation; engagement; vocation; calling; office; trade; profession.

OCCUPIER
Oc"cu*pi`er, n.

1. One who occupies, or has possession.

2. One who follows an employment; hence, a tradesman. [Obs.] "Merchants and occupiers." Holland. The occupiers of thy merchandise. Ezek. xxvii. 27.

OCCUPY
Oc"cu*py, v. t. [imp. & p. p. Occupied; p. pr. & vb. n. Occupying.]
Etym: [OE. occupien, F. occuper, fr.L. occupare; ob (see Ob-) + a
word akin to capere to take. See Capacious.]

1. To take or hold possession of; to hold or keep for use; to possess. Woe occupieth the fine [/end] of our gladness. Chaucer. The better apartments were already occupied. W. Irving .

2. To hold, or fill, the dimensions of; to take up the room or space of; to cover or fill; as, the camp occupies five acres of ground. Sir J. Herschel.

3. To possess or use the time or capacity of; to engage the service of; to employ; to busy. An archbishop may have cause to occupy more chaplains than six. Eng. Statute (Hen. VIII. ) They occupied themselves about the Sabbath. 2 Macc. viii. 27.

4. To do business in; to busy one's self with. [Obs.] All the ships of the sea, with their mariners, were in thee to occupy the merchandise. Ezek. xxvii. 9. Not able to occupy their old crafts. Robynson (More's Utopia).

5. To use; to expend; to make use of. [Obs.] All the gold that was occupied for the work. Ex. xxxviii. 24. They occupy not money themselves. Robynson (More's Utopia).

6. To have sexual intercourse with. [Obs.] Nares.

OCCUPY
Oc"cu*py, v. i.

1. To hold possession; to be an occupant. "Occupy till I come." Luke xix. 13.

2. To follow business; to traffic.

OCCUR
Oc*cur", v. i. [imp. & p. p. Occurred; p. pr. & vb. n. Occurring.]
Etym: [L. occurrere, occursum; ob (see Ob-) + currere to run. See
Course.]

1. To meet; to clash. [Obs.] The resistance of the bodies they occur with. Bentley.

2. To go in order to meet; to make reply. [Obs.] I must occur to one specious objection. Bentley.

3. To meet one's eye; to be found or met with; to present itself; to offer; to appear; to happen; to take place; as, I will write if opportunity occurs. In Scripture, though the word heir occur, yet there is no such thing as "heir" in our author's sense. Locke.

4. To meet or come to the mind; to suggest itself; to be presented to
the imagination or memory.
There doth not occur to me any use of this experiment for profit.
Bacon.

OCCURRENCE
Oc*cur"rence, n. Etym: [Cf. F. occurrence. See Occur.]

1. A coming or happening; as, the occurence of a railway collision. Voyages detain the mind by the perpetual occurrence and expectation of something new. I. Watts.

2. Any incident or event; esp., one which happens without being designed or expected; as, an unusual occurrence, or the ordinary occurrences of life. All the occurrence of my fortune. Shak.

Syn.
— See Event.

OCCURRENT Oc*cur"rent, a. Etym: [L. occurrens, -entis, p.pr. of occurrere: cf.F. occurrent. See Occur.]

Defn: Occurring or happening; hence, incidental; accidental.

OCCURRENT
Oc*cur"rent, n.

1. One who meets; hence, an adversary. [Obs.] Holland.

2. Anything that happens; an occurrence. [Obs.] These we must meet with in obvious occurrents of the world. Sir T. Browne.

OCCURSE
Oc*curse", n. Etym: [L.occursus.]

Defn: Same as Occursion. [Obs.] Bentley.

OCCURSION
Oc*cur"sion, n. Etym: [L.occursio. See Occur.]

Defn: A meeting; a clash; a collision. [Obs.] Boyle.

OCEAN
O"cean, n. Etym: [F. océan, L. oceanus, Gr.

1. The whole body of salt water which covers more than three fifths of the surface of the globe; — called also the sea, or great sea. Like the odor of brine from the ocean Comes the thought of other years. Longfellow.

2. One of the large bodies of water into which the great ocean is regarded as divided, as the Atlantic, Pacific, Indian, Arctic and Antarctic oceans.

3. An immense expanse; any vast space or quantity without apparent limits; as, the boundless ocean of eternity; an ocean of affairs. Locke.

OCEAN
O"cean, a.

Defn: Of or pertaining to the main or great sea; as, the ocean waves; an ocean stream. Milton.

OCEANIC
O`ce*an"ic, a. Etym: [Cf.F. océanique. See Ocean.]

1. Of or pertaining to the ocean; found or formed in or about, or produced by, the ocean; frequenting the ocean, especially mid-ocean. Petrels are the most aërial and oceanic of birds. Darwin.

2. Of or pertaining to Oceania or its inhabitants.

OCEANOGRAPHY
O`cean*og"ra*phy, n. Etym: [Ocean + -graphy.]

Defn: A description of the ocean.

OCEANOLOGY
O`cean*ol"o*gy, n. Etym: [Ocean + -logy.]

Defn: That branch of science which relates to the ocean.

OCEANUS
O*ce"a*nus, n. Etym: [L., from Gr. (Gr.Myth.)

Defn: The god of the great outer sea, or the river which was believed to flow around the whole earth.

OCELLARY
O*cel"la*ry, a.

Defn: Of or pertaining to ocelli.

OCELLATE
O*cel"late, a.

Defn: Same as Ocellated.

OCELLATED O*cel"la*ted, a. Etym: [L.ocellatus, fr. ocellus a little eye, dim. of oculus an eye.]

1. Resembling an eye.

2. Marked with eyelike spots of color; as, the ocellated blenny. Ocellated turkey (Zoöl.), the wild turkey of Central America (Meleagris ocellata).

OCELLUS O*cel"lus, n.; pl. Ocelli. Etym: [L., dim. of oculus an eye.] (Zoöl.) (a) A little eye; a minute simple eye found in many invertebrates. (b) An eyelike spot of color, as those on the tail of the peacock.

OCELOID
O"ce*loid, a. Etym: [Ocelot + -oid.] (Zoöl.)

Defn: Resembling the ocelot.

OCELOT
O"ce*lot, n. Etym: [Mexican ocelotl.] (Zoöl.)

Defn: An American feline carnivore (Felis pardalis). It ranges from the Southwestern United States to Patagonia. It is covered with blackish ocellated spots and blotches, which are variously arranged. The ground color varies from reddish gray to tawny yellow.

OCHER; OCHRE O"cher, O"chre, n. Etym: [F.ocre, L. ochra, fr. Gr. (Min.) (a) A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), — used as a pigment in making paints, etc. The name is also applied to clays of other colors. (b) A metallic oxide occurring in earthy form; as, tungstic ocher or tungstite.

OCHEROUS; OCHREOUS
O"cher*ous, O"chre*ous, a. Etym: [Cf. F. ocreux.]

Defn: Of or pertaining to ocher; containing or resembling ocher; as, ocherous matter; ocherous soil.

OCHERY
O"cher*y, a.

Defn: Ocherous. [Written also ochrey, ochry.]

OCHIMY
Och`i*my, n. [Obs.]

Defn: See Occamy.

OCHLESIS
Och*le"sis, n. Etym: [NL., fr. Gr. (Med.)

Defn: A general morbid condition induced by the crowding together of many persons, esp. sick persons, under one roof. G. Gregory.

OCHLOCRACY
Och*loc"ra*cy, n. Etym: [Gr. ochlocratie.]

Defn: A form of government by the multitude; a mobocracy. Hare.

OCHLOCRATIC; OCHLOCRATICAL
Och`lo*crat`ic, Och`lo*crat`ic*al, a.

Defn: Of or pertaining to ochlocracy; having the form or character of an ochlocracy; mobocratic. — Och`lo*crat"ic*al*ly, adv.

OCHRACEOUS
O*chra"ceous, a.

Defn: Ocherous.

OCHRE
O"chre, n. (Min.)

Defn: See Ocher.

OCHREA
O"chre*a, n.; pl. Ochreæe. Etym: [L.]

1. (Antiq.)

Defn: A greave or legging.

2. (Bot.)

Defn: A kind of sheath formed by two stipules united round a stem.

OCHREATE; OCHREATED
O"chre*ate, O"chre*a`ted, a.

1. Wearing or furnished with an ochrea or legging; wearing boots; booted. A scholar undertook…to address himself ochreated unto the vice chancellor. Fuller.

2. (Bot.)

Defn: Provided with ochrea, or sheathformed stipules, as the rhubarb, yellow dock, and knotgrass.

OCHREOUS
O"chre*ous, a.

Defn: See Ocherous.

OCHREY
O"chrey, a.

Defn: See Ochery.

OCHROLEUCOUS
Och`ro*leu"cous, a. Etym: [Gr.

Defn: Yellowish white; having a faint tint of dingy yellow. Gray.

OCHRY
O"chry, a.

Defn: See Ochery.

OCHYMY
Och"y*my, n. [Obs.]

Defn: See Occamy.

-OCK -ock. Etym: [AS. -uc.]

Defn: A suffix used to form diminutives; as, bullock, hillock.

OCRA
O"cra, n. (Bot.)

Defn: See Okra.

OCREA
O"cre*a, n. Etym: [L.]

Defn: See Ochrea.

OCREATE; OCREATED
O"cre*ate, O"cre*a"ted, a. Etym: [See Ochrea.]

Defn: Same as Ochreate, Ochreated.

OCTA-
Oc"ta-.

Defn: A prefix meaning eight. See Octo-.

OCTACHORD
Oc"ta*chord, n. Etym: [Gr. octacorde.] (Mus.)

Defn: An instrument of eight strings; a system of eight tones. [Also written octochord.]

OCTAD
Oc"tad, n. Etym: [Gr. (Chem.)

Defn: An atom or radical which has a valence of eight, or is octavalent.

OCTAEDRAL
Oc`ta*e"dral, a.

Defn: See Octahedral.

OCTAEMERON
Oc`ta*em"e*ron, n. Etym: [NL., fr. Gr. (Eccl.)

Defn: A fast of eight days before a great festival. Shipley.

OCTAGON
Oc"ta*gon, n. Etym: [Gr. cctogone.]

1. (Geom.)

Defn: A plane figure of eight sides and eight angles.

2. Any structure (as a fortification) or place with eight sides or angles. Regular octagon, one in which the sides are all equal, and the angles also are all equal.

OCTAGONAL
Oc*tag"o*nal, a.

Defn: Having eight sides and eight angles.

OCTAGYNOUS
Oc*tag"y*nous, a. Etym: [Octa- + Gr. (Bot.)

Defn: Having eight pistils or styles; octogynous.

OCTAHEDRAL
Oc`ta*he"dral, a. Etym: [See Octahedron.]

Defn: Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage. Octahedral borax (Chem.), borax obtained from a saturated solution in octahedral crystals, which contain five molecules of water of crystallization; distinguished from common or prismatic borax. — Octahedral iron ore (Min.), magnetite.

OCTAHEDRITE
Oc`ta*he"drite, n. (Min.)

Defn: Titanium dioxide occurring in acute octahedral crystals.

OCTAHEDRON
Oc`ta*he"dron, n. Etym: [Gr. (Geom.)

Defn: A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.

OCTAMEROUS
Oc*tam"er*ous, a. Etym: [Octa- + Gr. (Biol.)

Defn: Having the parts in eights; as, an octamerous flower; octamerous mesenteries in polyps.

OCTAMETER Oc*tam"e*ter, n. Etym: [Cf.L. octameter in eight feet. See Octa-, and meter.] (Pros.)

Defn: A verse containing eight feet; as, — Deep'' in|to'' the | dark''ness | peer''ing, | long'' I | stood'' there | wond'''ring, | fear''ing. Poe.

OCTANDER
Oc*tan"der, n.

Defn: One of the Octandria.

OCTANDRIA
Oc*tan"dri*a, n.pl. Etym: [NL., fr. Gr. (Bot.)

Defn: A Linnæan class of plants, in which the flowers have eight stamens not united to one another or to the pistil.

OCTANDRIAN; OCTANDROUS
Oc*tan"dri*an, Oc*tan"drous, a. (Bot.)

Defn: Of or pertaining to the Octandria; having eight distinct stamens.

OCTANE
Oc"tane, n. Etym: [See Octa-] . (Chem.)

Defn: Any one of a group of metametric hydrocarcons (C8H18) of the methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.

OCTANGULAR Oc*tan"gu*lar, a. Etym: [L.octangulus eight-cornered; octo eight + angulus angle.]

Defn: Having eight angles; eight-angled.
— Oc*tan"gu*lar*ness, n.

OCTANT
Oc"tant, n. Etym: [L. octans, -antis. fr. octo eight. See Octave.]

1. (Geom.)

Defn: The eighth part of a circle; an arc of 45 degrees.

2. (Astron. & Astrol.)

Defn: The position or aspect of a heavenly body, as the moon or a planet, when half way between conjunction, or opposition, and quadrature, or distant from another body 45 degrees.

3. An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9Oº, but being itself the eighth part of a circle. Cf. Sextant.

4. (Math. & Crystallog.)

Defn: One of the eight parts into which a space is divided by three coördinate planes.

OCTAPLA Oc"ta*pla, n.; etymol. pl., but syntactically sing. Etym: [NL., fr.Gr. -pla, as in E. hexapla; cf.Gr.

Defn: A portion of the Old Testament prepared by Origen in the 3d century, containing the Hebrew text and seven Greek versions of it, arranged in eight parallel columns.

OCTAROON
Oc`ta*roon", n.

Defn: See Octoroon.

OCTASTYLE
Oc"ta*style, a.

Defn: See Octostyle.

OCTATEUCH
Oc"ta*teuch, n. Etym: [L. octateuchus, Gr.

Defn: A collection of eight books; especially, the first eight books of the Old Testament. [R.]

OCTAVALENT
Oc*tav"a*lent, a. Etym: [Octa- + L. valens, p. pr. See Valence.]
(Chem.)

Defn: Having a valence of eight; capable of being combined with, exchanged for, or compared with, eight atoms of hydrogen; — said of certain atoms or radicals.

OCTAVE Oc"tave, n. Etym: [F., fr. L. octava an eighth, fr. octavus eighth, fr. octo eight. See Eight, and cf. Octavo, Utas.]

1. The eighth day after a church festival, the festival day being included; also, the week following a church festival. "The octaves of Easter." Jer. Taylor.

2. (Mus.) (a) The eighth tone in the scale; the interval between one and eight of the scale, or any interval of equal length; an interval of five tones and two semitones. (b) The whole diatonic scale itself.

Note: The ratio of a musical tone to its octave above is 1:2 as regards the number of vibrations producing the tones.

3. (Poet.)

Defn: The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines. With mournful melody it continued this octave. Sir P. Sidney. Double octave. (Mus.) See under Double. — Octave flute (Mus.), a small flute, the tones of which range an octave higher than those of the German or ordinary flute; — called also piccolo. See Piccolo.

4. A small cask of wine, the eighth part of a pipe.

OCTAVE
Oc"tave, a.

Defn: Consisting of eight; eight. Dryden.

OCTAVO Oc*ta"vo, n.;pl. Octavos. Etym: [L. in octavo; in in + octavo, abl. of octavus. See Octave.]

Defn: A book composed of sheets each of which is folded into eight leaves; hence, indicating more or less definitely a size of book so made; — usually written 8vo or 8º.

OCTAVO
Oc*ta"vo, a.

Defn: Having eight leaves to a sheet; as, an octavo form, book, leaf, size, etc.

OCTENE
Oc"tene, n. Etym: [See Octo-.] (Chem.)

Defn: Same as Octylene.

OCTENNIAL Oc*ten"ni*al, a. Etym: [L. octennium a period of eight years; octo eight + annus year.]

Defn: Happening every eighth year; also, lasting a period of eight
years. Johnson.
— Oc*ten"ni*al*ly, adv.

OCTET
Oc*tet", n. Etym: [From L. octo eight, like E. duet, fr.L.duo. See
Octave.] (Mus.)

Defn: A composition for eight parts, usually for eight solo instruments or voices.

OCTIC
Oc"tic, a. Etym: [Octo- + -ic.] (Math.)

Defn: Of the eighth degree or order.
— n. (Alg.)

Defn: A quantic of the eighth degree.

OCTILE
Oc"tile, n. Etym: [Cf. F. octil, a. See Octant.]

Defn: Same as Octant, 2. [R.]

OCTILLION
Oc*til"lion, n. Etym: [L. octo eight + -illion, as in E. million: cf.
F. octillion.]

Defn: According to the French method of numeration (which method is followed also in the United States) the number expressed by a unit with twenty-seven ciphers annexed. According to the English method, the number expressed by a unit with forty-eight ciphers annexed. See Numeration.

OCTO-; OCTA-
Oc"to-, Oc"ta-. Etym: [L.octo eight, Gr. Eight.]

Defn: A combining form meaning eight; as in octodecimal, octodecimal, octolocular.

OCTOATE
Oc"to*ate, n. (Chem.)

Defn: A salt of an octoic acid; a caprylate.

OCTOBER
Oc*to"ber, n. Etym: [L., the eighth month of the primitive Roman
year, which began in March, fr. octo eight: cf.F. Octobre. See
Octave.]

1. The tenth month of the year, containing thirty-one days.

2. Ale or cider made in that month. The country gentlemen had a posset or drink they called October. Emerson.

OCTOCERA
Oc*toc"e*ra, n.pl. Etym: [NL.]

Defn: Octocerata.

OCTOCERATA
Oc`to*cer"a*ta, n.pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A suborder of Cephalopoda including Octopus, Argonauta, and allied genera, having eight arms around the head; — called also Octopoda.

OCTOCHORD
Oc"to*chord, n. (Mus.)

Defn: See Octachord.

OCTODECIMO Oc`todec"i*mo, a. Etym: [L. octodecim eighteen. See Octavo, Decimal, and -mo.]

Defn: Having eighteen leaves to a sheet; as, an octodecimo form, book, leaf, size, etc.

OCTODECIMO
Oc`to*dec"i*mo, n.; pl. Octodecimos (.

Defn: A book composed of sheets each of which is folded into eighteen leaves; hence; indicating more or less definitely a size of book, whose sheets are so folded; — usually written 18mo or 18º, and called eighteenmo.

OCTODENTATE
Oc`to*den"tate, a. Etym: [Octo- + dentate.]

Defn: Having eight teeth.

OCTODONT
Oc"to*dont, a. Etym: [Octo- + Gr. (Zoöl.)

Defn: Of or pertaining to the Octodontidæ, a family of rodents which includes the coypu, and many other South American species.

OCTOEDRICAL
Oc`to*ed"ric*al, a.

Defn: See Octahedral. [Obs.] Sir T. Browne.

OCTOFID Oc"to*fid, a. Etym: [Octo- + root of L. findere to split: cf.F. octofide.] (Bot.)

Defn: Cleft or separated into eight segments, as a calyx.

OCTOGAMY
Oc*tog"a*my, n. Etym: [Octo- + Gr.

Defn: A marrying eight times. [R.] Chaucer.

OCTOGENARIAN
Oc`to*ge*na"ri*an, n.

Defn: A person eighty years, or more, of age.

OCTOGENARY Oc*tog"e*na*ry, a. Etym: [L. octogenarrus, from octogeni eighty each, octoginta eighty, fr. octo eight. See Eight, Eighty.]

Defn: Of eighty years of age. "Being then octogenary." Aubrey.

OCTOGILD
Oc"to*gild, n. Etym: [Octo- + AS. gild payment.] (Anglo-Saxon Law)

Defn: A pecuniary compensation for an injury, of eight times the value of the thing.

OCTOGONAL
Oc*tog"o*nal, a.

Defn: See Octagonal. [Obs.]

OCTOGYNIA
Oc`to*gyn"i*a, n.pl. Etym: [NL., from Gr. (Bot.)

Defn: A Linnaean order of plants having eight pistils.

OCTOGYNIAN; OCTOGYNOUS
Oc`to*gyn"i*an, Oc*tog"y*nous, a. (Bot.)

Defn: Having eight pistils; octagynous.

OCTOIC
Oc*to"ic, a. Etym: [See Octo-.] (Chem.)

Defn: Pertaining to, derived from, or resembling, octane; — used specifically, to designate any one of a group of acids, the most important of which is called caprylic acid.

OCTOLOCULAR
Oc`to*loc"u*lar, a. Etym: [Octo- + locular.] (Bot.)

Defn: Having eight cells for seeds.

OCTONAPHTHENE
Oc`to*naph"thene, n. Etym: [Octo- + naphthene.] (Chem.)

Defn: A colorless liquid hydrocarbon of the octylene series, occurring in Caucasian petroleum.

OCTONARY Oc`to*na*ry, a. Etym: [L. octonarius, fr. octoni eight each, fr. octo eight.]

Defn: Of or pertaining to the number eight. Dr. H. More.

OCTONOCULAR
Oc`to*noc"u*lar, a. Etym: [L. octoni eight each + E. ocular.]

Defn: Having eight eyes. Derham.

OCTOPEDE
Oc`to*pede, n. Etym: [Octo- + L. pes, pedis, foot.] (Zoöl.)

Defn: An animal having eight feet, as a spider.

OCTOPETALOUS
Oc`to*pet"al*ous, a. Etym: [Octo- + petal.] (Bot.)

Defn: Having eight petals or flower leaves.

OCTOPOD
Oc"to*pod, n. Etym: [Gr. octopode.] (Zoöl.)

Defn: One of the Octocerata.

OCTOPODA Oc*top"o*da, n.pl. Etym: [NL.] (Zoöl.) (a) Same as Octocerata. (b) Same as Arachnida.

OCTOPODIA
Oc`to*po"di*a, n.pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: Same as Octocerata.

OCTOPUS
Oc"to*pus, n. Etym: [NL. See Octopod.] (Zoöl.)

Defn: A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish,

OCTORADIATED
Oc`to*ra"*di*a`ted, a. Etym: [Octo- + radiated.]

Defn: Having eight rays.

OCTOROON
Oc`to*roon", n. Etym: [L. octo eight + -roon, as in quadroon.]

Defn: The offspring of a quadroon and a white person; a mestee.

OCTOSPERMOUS
Oc`to*sper"mous, a. Etym: [Octo- + Cr. (Bot.)

Defn: Containing eight seeds.

OCTOSTICHOUS
Oc*tos"ti*chous, a. Etym: [Octo- + Gr. (Bot.)

Defn: In eight vertical ranks, as leaves on a stem.

OCTOSTYLE
Oc"to*style, a. Etym: [Octo- + Gr. octostyle.] (Arch.)

Defn: Having eight columns in the front; — said of a temple or portico. The Parthenon is octostyle, but most large Greek temples are hexastele. See Hexastyle. — n.

Defn: An octostyle portico or temple.

OCTOSYLLABIC; OCTOSYLLABICAL
Oc`to*syl*lab"ic, Oc`to*syl*lab"ic*al, a. Etym: [L. octosyllabus. See
Octo-, and Syllable.]

Defn: Consisting of or containing eight syllables.

OCTOSYLLABLE
Oc"to*syl`la*ble, a.

Defn: Octosyllabic.

OCTOSYLLABLE
Oc"to*syl`la*ble, n.

Defn: A word of eight syllables.

OCTOYL
Oc"to*yl (, n. Etym: [Octoic + -yl.] (Chem.)

Defn: A hypothetical radical (C8H15O), regarded as the essential residue of octoic acid.

OCTROI
Oc`troi", n. Etym: [F.]

1. A privilege granted by the sovereign authority, as the exclusive right of trade granted to a guild or society; a concession.

2. A tax levied in money or kind at the gate of a French city on articles brought within the walls. [Written also octroy.]

OCTUOR
Oc"tu*or, n. Etym: [From L. octo eight + -uor, as in L. quatuor.]
(Mus.)

Defn: See Octet. [R.]

OCTUPLE
Oc"tu*ple, a. Etym: [L. octuplus; cf. Gr. octuple.]

Defn: Eightfold.

OCTYL
Oc"tyl, n. Etym: [Octane + -yl.] (Chem.)

Defn: A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol.

OCTYLENE
Oc"tyl*ene, n. Etym: [Octane + ethylene.] (Chem.)

Defn: Any one of a series of metameric hydrocarbons (C8H16) of the ethylene series. In general they are combustible, colorless liquids.

OCTYLIC
Oc*tyl"ic, a. (Chem.)

Defn: Pertaining to, derived from, or containing, octyl; as, octylic ether.

OCULAR Oc"u*lar, a. Etym: [L. ocularis, ocularius, fr. oculus the eye: cf.F. oculaire. See Eye, and cf. Antler, Inveigle.]

1. Depending on, or perceived by, the eye; received by actual sight; personally seeing or having seen; as, ocular proof. Shak. Thomas was an ocular witness of Christ's death. South.

2. (Anat.)

Defn: Of or pertaining to the eye; optic.

OCULAR
Oc"u*lar, n. (Opt.)

Defn: The eyepiece of an optical instrument, as of a telescope or microscope.

OCULARLY
Oc"u*lar*ly, adv.

Defn: By the eye, or by actual sight.

OCULARY
Oc"u*la*ry, a.

Defn: Of or pertaining to the eye; ocular; optic; as, oculary medicines. Holland.

OCULATE; OCULATED
Oc"u*late, Oc"u*la`ted, a. Etym: [L. oculatus, fr. oculus eye.]

1. Furnished with eyes.

2. Having spots or holes resembling eyes; ocellated.

OCULIFORM
Oc`u*li*form, a. Etym: [L. oculus the eye + form: cf.F. oculiforme.]

Defn: In the form of an eye; resembling an eye; as, an oculiform pebble.

OCULINA
Oc`u*li"na, n. Etym: [NL., fr. L. oculus the eye.] (Zoöl.)

Defn: A genus of tropical corals, usually branched, and having a very volid texture.

OCULINACEA Oc`u*li*na"*ce*a, n.pl. Etym: [NL., fr. NL. oculina the name of a typical genus.] (Zoöl.)

Defn: A suborder of corals including many reef-building species, having round, starlike calicles.

OCULIST
Oc"u*list, n. Etym: [L. oculus the eye: cf. F. oculiste.]

Defn: One skilled in treating diseases of the eye.

OCULO-
Oc"u*lo-.

Defn: A combining form from L. oculus the eye.

OCULOMOTOR
Oc`u*lo*mo"tor, a. Etym: [Oculo- + motor.] (Anat.)

Defn: Of or pertaining to the movement of the eye; — applied especially to the common motor nerves (or third pair of cranial nerves) which supply many of the muscles of the orbit. — n.

Defn: The oculomotor nerve.

OCULONASAL
Oc`u*lo*na"sal, a. Etym: [Oculo- + nasal.] (Anat.)

Defn: Of or pertaining to the region of the eye and the nose; as, the oculonasal, or nasal, nerve, one of the branches of the ophthalmic.

OCULUS
Oc"u*lus, n.; pl. Oculi. Etym: [L., an eye.]

1. An eye; (Bot.) a leaf bud.

2. (Arch.)

Defn: A round window, usually a small one.

OCYPODIAN
O`cy*po"di*an, n. Etym: [Gr. 'wky`s swift + poy`s, podo`s, foot.]
(Zoöl.)

Defn: One of a tribe of crabs which live in holes in the sand along the seashore, and run very rapidly, — whence the name.

OD
Od, n. Etym: [G., fr. Gr. (Physics)

Defn: An alleged force or natural power, supposed, by Reichenbach and others, to produce the phenomena of mesmerism, and to be developed by various agencies, as by magnets, heat, light, chemical or vital action, etc.; — called also odyle or the odylic force. [Archaic] That od force of German Reichenbach Which still, from female finger tips, burnt blue. Mrs. Browning.

ODAL
O"dal, n. [Cf. Icel. eal, Dan. odel allodial, Sw. odal.] (Law)

Defn: Among the early and medieval Teutonic peoples, esp. Scandinavians, the heritable land held by the various odalmen constituting a family or kindred of freeborn tribesmen; also, the ownership of such land. The odal was subject only to certain rights of the family or kindred in restricting the freedom of transfer or sale and giving certain rights of redemption in case of change of ownership by inheritance, etc., and perhaps to other rights of the kindred or the tribe. Survivals of the early odal estates and tenure exist in Orkney and Shetland, where it is usually called by the variant form udal.

ODAL
O"dal, a. (Law)

Defn: Noting, or pert. to, odal land or ownership.

ODALISQUE O`da`lisque", n. Etym: [F., fr. Turk. odaliq chambermaid, fr. oda chamber, room.]

Defn: A female slave or concubine in the harem of the Turkish sultan.
[Written also odahlic, odalisk, and odalik.]
Not of those that men desire, sleek Odalisques, or oracles of mode.
Tennyson.

ODALMAN; ODALWOMAN
O"dal*man, O"dal*wom`an, n. (Teut. Law)

Defn: A man or woman having odal, or able to share in it by inheritance.

ODD Odd, a. [Compar. Odder; superl. Oddest.] Etym: [OE. odde, fr.Icel. oddi a tongue of land, a triangle, an odd number (from the third or odd angle, or point, of a triangle), orig., a point, tip; akin to Icel. oddr point, point of a weapon, Sw. udda odd, udd point, Dan. od, AS. ord, OHG. ort, G. ort place (cf. E. point, for change of meaning).]

1. Not paired with another, or remaining over after a pairing; without a mate; unmatched; single; as, an odd shoe; an odd glove.

2. Not divisible by 2 without a remainder; not capable of being evenly paired, one unit with another; as, 1, 3, 7, 9, 11, etc., are odd numbers. I hope good luck lies in odd numbers. Shak.

3. Left over after a definite round number has been taken or mentioned; indefinitely, but not greatly, exceeding a specified number; extra. Sixteen hundred and odd years after the earth was made, it was destroyed in a deluge. T. Burnet. There are yet missing of your company Some few odd lads that you remember not. Shak.

4. Remaining over; unconnected; detached; fragmentary; hence, occasional; inconsiderable; as, odd jobs; odd minutes; odd trifles.

5. Different from what is usual or common; unusual; singular; peculiar; unique; strange. "An odd action." Shak. "An odd expression." Thackeray. The odd man, to perform all things perfectly, is, in my poor opinion, Joannes Sturmius. Ascham. Patients have sometimes coveted odd things. Arbuthnot. Locke's Essay would be a very odd book for a man to make himself master of, who would get a reputation by critical writings. Spectator.

Syn. — Quaint; unmatched; singular; unusual; extraordinary; strange; queer; eccentric, whimsical; fantastical; droll; comical. See Quaint.

ODD FELLOW
Odd" Fel`low.

Defn: A member of a secret order, or fraternity, styled the Independent Order of Odd Fellows, established for mutual aid and social enjoyment.

ODDITY
Odd"i*ty, n.; pl. Oddities (.

1. The quality or state of being odd; singularity; queerness; peculiarity; as, oddity of dress, manners, and the like. That infinitude of oddities in him. Sterne.

2. That which is odd; as, a collection of oddities.

ODDLY
Odd"ly, adv.

1. In an odd manner; unevently. [R.]

2. In a peculiar manner; strangely; queerly; curiously. "A figure a little more oddly turned." Locke. A great black substance,… very oddly shaped. Swift.

3. (Math.)

Defn: In a manner measured by an odd number.

ODDMENT
Odd"ment, n. [Odd + -ment.]

Defn: An odd thing, or one that is left over, disconnected, fragmentary, or the like; something that is separated or disconnected from its fellows; esp. (in pl.),

Defn: the odds and ends. Specif.: (Printing) Any separate small part or page in a book, other than the text, such as the title page, contents, etc.

A miscellaneous collection of riddles, charms, gnomic verses, and "oddments" of different kinds. Saintsbury.

ODDNESS
Odd"ness, n.

1. The state of being odd, or not even. Take but one from three, and you not only destroy the oddness, but also the essence of that number. Fotherby.

2. Singularity; strangeness; eccentricity; irregularity; uncouthness; as, the oddness of dress or shape; the oddness of an event. Young.

ODDS
Odds, n. sing. & pl. Etym: [See Odd, a.]

1. Difference in favor of one and against another; excess of one of two things or numbers over the other; inequality; advantage; superiority; hence, excess of chances; probability. "Preëminent by so much odds." Milton. "The fearful odds of that unequal fray." Trench. The odds Is that we scare are men and you are gods. Shak. There appeared, at least, four to one odds against them. Swift. All the odds between them has been the different s "cope….given to their understandings to range in. Locke. Judging is balancing an account and determining on which side the odds lie. Locke.

2. Quarrel; dispute; debate; strife; — chiefly in the phraze at odds. Set them into confounding odds. Shak. I can not speak Any beginning to this peevish odds. Shak. At odds, in dispute; at variance. "These squires at odds did fall." Spenser. "He flashes into one gross crime or other, that sets us all at odds." Shak. — It is odds, it is probable. [Obs.] Jer. Taylor. — Odds and ends, that which is left; remnants; fragments; refuse; scraps; miscellaneous articles. "My brain is filled…with all kinds of odds and ends." W. Irving.

ODE
Ode, n. Etym: [F., fr. L. ode, oda, Gr. vad to speak, sing. Cf.
Comedy, Melody, Monody.]

Defn: A short poetical composition proper to be set to music or sung; a lyric poem; esp., now, a poem characterized by sustained noble sentiment and appropriate dignity of style. Hangs odes upon hawthorns and elegies on brambles. Shak. O! run; prevent them with thy humble ode, And lay it lowly at his blessed feet. Milton. Ode factor, one who makes, or who traffics in, odes; — used contemptuously.

ODELET
Ode"let, n.

Defn: A little or short ode.

ODELSTHING
O"dels*thing, n. [Norw. odel odal + ting parliament.]

Defn: The lower house of the Norwegian Storthing. See Legislature.

ODEON
O*de"on, n. Etym: [NL., fr. Gr. odéon. See Ode.]

Defn: A kind of theater in ancient Greece, smaller than the dramatic theater and roofed over, in which poets and musicians submitted their works to the approval of the public, and contended for prizes; — hence, in modern usage, the name of a hall for musical or dramatic performances.

ODEUM
O*de"um, n. Etym: [L.]

Defn: See Odeon.

ODIBLE
O"di*ble, a. Etym: [L. odibilis. See Odium.]

Defn: Fitted to excite hatred; hateful. [Obs.] Bale.

ODIC
Od"ic, a.

Defn: Of or pertaining to od. See Od. [Archaic] — Od"ic*al*ly, adv.

ODIN
O"din, n. Etym: [Icel. wood, a. See Wednesday.] (Northern Myth.)

Defn: The supreme deity of the Scandinavians; — the same as Woden,
of the German tribes.
There in the Temple, carved in wood, The image of great Odin stood.
Longfellow.

ODINIC
O*din"ic, a.

Defn: Of or pertaining to Odin.

ODINISM
O"din*ism, n.

Defn: Worship of Odin; broadly, the Teutonic heathenism. —
O"din*ist, n.

Odinism was valor; Christianism was humility, a nobler kind of valor.
Carlyle.

ODIOUS
O"di*ous, a. Etym: [L. odiosus, from odium hatred: cf. F. odieux. See
Odium.]

1. Hateful; deserving or receiving hatred; as, an odious name, system, vice. "All wickedness will be most odious." Sprat. He rendered himself odious to the Parliament. Clarendon.

2. Causing or provoking hatred, repugnance, or disgust; offensive; disagreeable; repulsive; as, an odious sight; an odious smell. Milton. The odious side of that polity. Macaulay.

Syn.
— Hateful; detestable; abominable; disgusting; loathsome;
invidious; repulsive; forbidding; unpopular.
— O"di*ous`ly. adv.
— O"di*ous*ness, n.

ODIST
Od"ist, n.

Defn: A writer of an ode or odes.

ODIUM
O"di*um, n. Etym: [L., fr. odi I hate. Gr. Annoy, Noisome.]

1. Hatred; dislike; as, his conduct brought him into odium, or, brought odium upon him.

2. The quality that provokes hatred; offensiveness. She threw the odium of the fact on me. Dryden. Odium theologicum ( Etym: [L.], the enmity peculiar to contending theologians.

Syn. — Hatred; abhorrence; detestation; antipathy. — Odium, Hatred. We exercise hatred; we endure odium. The former has an active sense, the latter a passive one. We speak of having a hatred for a man, but not of having an odium toward him. A tyrant incurs odium. The odium of an offense may sometimes fall unjustly upon one who is innocent. I wish I had a cause to seek him there, To oppose his hatred fully. Shak. You have…dexterously thrown some of the odium of your polity upon that middle class which you despise. Beaconsfield.

ODIZE
Od"ize, v. t. [imp. & p. p. Odized p. pr. & vb. n. Odizing.]

Defn: To charge with od. See Od. [Archaic]

ODMYL
Od"myl, n. Etym: [Gr. -yl.] (Chem.)

Defn: A volatile liquid obtained by boiling sulphur with linseed oil.
It has an unpleasant garlic odor.

ODOGRAPH
O"do*graph, n. [Gr. way + -graph.]

1. A machine for registering the distance traversed by a vehicle or pedestrain.

2. A device for recording the length and rapidity of stride and the number of steps taken by a walker.

ODOMETER
O*dom"e*ter, n. Etym: [Gr. odométre, hodométre.]

Defn: An instrument attached to the wheel of a vehicle, to measure the distance traversed; also, a wheel used by surveyors, which registers the miles and rods traversed.

ODOMETRICAL
O`do*met"ric*al, a. Etym: [Cf. F. odométrique, hodométrique.]

Defn: Of or pertaining to the odometer, or to measurements made with it.

ODOMETROUS
O*dom"e*trous, a.

Defn: Serving to measure distance on a road. [R.] Sydney Smith.

ODOMETRY
O*dom"e*try, n.

Defn: Measurement of distances by the odometer.

ODONATA
O*don"a*ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: The division of insects that includes the dragon flies.

ODONTALGIA
O`don*tal"gi*a, n. Etym: [NL., fr. Gr. (Med.)

Defn: Toothache.

ODONTALGIC
O`don*tal"gic, a. Etym: [Cf. F. odontalgique.]

Defn: Of or pertaining to odontalgia.
— n.

Defn: A remedy for the toothache.

ODONTALGY
O`don*tal"gy, n. (Med.)

Defn: Same as Odontalgia.

ODONTIASIS
O`don*ti"a*sis, n. Etym: [NL., fr. Gr.

Defn: Cutting of the teeth; dentition.

ODONTO-
O*don"to-.

Defn: A combining form from Gr.

ODONTOBLAST
O*don"to*blast, n. Etym: [Odonto- + -blast.]

1. (Anat.)

Defn: One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine.

2. (Zoöl.)

Defn: One of the cells which secrete the chitinous teeth of Mollusca.

ODONTOCETE
O*don`to*ce"te, n.pl. Etym: [NL., from Gr. (Zoöl.)

Defn: A subdivision of Cetacea, including the sperm whale, dolphins, etc.; the toothed whales.

ODONTOGENY
O`don*tog"e*ny, n. Etym: [Odonto- + root of Gr. odontogénie.]
(Physiol.)

Defn: Generetion, or mode of development, of the teeth.

ODONTOGRAPH
O*don"to*graph, n. Etym: [Odonto- + -graph.]

Defn: An instrument for marking or laying off the outlines of teeth of gear wheels.

ODONTOGRAPHIC
O*don`to*graph"ic, a.

Defn: Of or pertaining to odontography.

ODONTOGRAPHY
O`don*tog"ra*phy, n.

Defn: A description of the teeth.

ODONTOID O*don"toid, a. Etym: [Gr. odontoïde.] (Anat.) (a) Having the form of a tooth; toothlike. (b) Of or pertaining to the odontoid bone or to the odontoid process. Odontoid bone (Anat.), a separate bone, in many reptiles, corresponding to the odontoid process. — Odontoid process, or Odontoid peg (Anat.), the anterior process of the centrum of the second vertebra, or axis, in birds and mammals. See Axis.

ODONTOLCAE
O`don*tol"cae, n. pl. Etym: [NL., from Gr. (Paleon.)

Defn: An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis. [Written also Odontholcae, and Odontoholcae.]

ODONTOLITE
O*don"to*lite, n. Etym: [Odonto- + -lite.] (Min.)

Defn: A fossil tooth colored a bright blue by phosphate of iron. It is used as an imitation of turquoise, and hence called bone turquoise.

ODONTOLOGY
O`don*tol"o*gy, n. Etym: [Odonto- + -logy: cf.F. odontologie.]

Defn: The science which treats of the teeth, their structure and development.

ODONTOPHORA
O`don*toph"o*ra, n.pl. Etym: [NL. See Odontophore.] (Zoöl.)

Defn: Same as Cephalophora.

ODONTOPHORE
O*don"to*phore, n. Etym: [Odonto- + Gr. (Zoöl.)

Defn: A special structure found in the mouth of most mollusks, except bivalves. It consists of several muscles and a cartilage which supports a chitinous radula, or lingual ribbon, armed with teeth. Also applied to the radula alone. See Radula.

ODONTOPHOROUS
O`don*toph"o*rous, a. (Zoöl.)

Defn: Having an odontophore.

ODONTOPLAST
O*don"to*plast, n. Etym: [Odonto- + Gr. (Anat.)

Defn: An odontoblast.

ODONTOPTERYX O`don*top"te*ryx, n. Etym: [NL., fr. Gr. 'odoy`s, 'odo`ntos, a tooth + pte`ryx a wing.] (Paleon.)

Defn: An extinct Eocene bird having the jaws strongly serrated, or dentated, but destitute of true teeth. It was found near London.

ODONTORNITHES O*don`tor*ni*"thes, n. pl. Etym: [NL., fr.Gr. 'odoy`s, 'odo`ntos, a tooth + (Paleon.)

Defn: A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcæ, Odontotormæ, and Saururæ.

ODONTOSTOMATOUS
O*don"to*stom"a*tous, a. Etym: [Odonto- + Gr. (Zoöl.)

Defn: Having toothlike mandibles; — applied to certain insects.

ODONTOTORMAE
O*don`to*tor"mae, n.pl. Etym: [NL., fr. (Paleon.)

Defn: An order of extinct toothed birds having the teeth in sockets, as in the genus Ichthyornis. See Ichthyornis.

ODOR
O"dor, n. Etym: [OE. odor, odour, OF. odor, odour, F. odeur, fr. L.
odor; akin to olere to smell, Gr. Olfactory, Osmium, Ozone,
Redolent.] [Written also odour.]

Defn: Any smell, whether fragrant or offensive; scent; perfume.
Meseemed I smelt a garden of sweet flowers, That dainty odors from
them threw around. Spenser.
To be in bad odor, to be out of favor, or in bad repute.

ODORAMENT
O"dor*a*ment, n. Etym: [L. odoramentum. See Odorate.]

Defn: A perfume; a strong scent. [Obs.] Burton.

ODORANT
O"dor*ant, a. Etym: [L.odorans, -antis, p.pr.]

Defn: Yielding odors; fragrant. Holland.

ODORATE O"dor*ate, a. Etym: [L. odoratus, p.p. of odorare to perfume, fr. odor odor.]

Defn: Odorous. [Obos.] Bacon.

ODORATING
O"dor*a*`ting, a.

Defn: Diffusing odor or scent; fragrant.

ODORIFEROUS
O`dor*if"er*ous, a. Etym: [L. odorifer; odor odor + ferre to bear.
See Odoe, and st Bear.]

Defn: Bearing or yielding an odor; perfumed; usually, sweet of scent; fragrant; as, odoriferous spices, particles, fumes, breezes. Milton. — O`dor*if"er*ous*ly, adv. —O`dor*if"er*ous*ness, n.

ODORINE
O"dor*ine, n. (Chem.)

Defn: A pungent oily substance obtained by redistilling bone oil.
[Obs.]

ODORLESS
O"dor*less, a.

Defn: Free from odor.

ODOROUS O"dor*ous, a. [Written also odourous.] Etym: [L. odorus, fr.odor odor: cf. OF. odoros, odoreux.]

Defn: Having or emitting an odor or scent, esp. a sweet odor;
fragrant; sweet-smelling. "Odorous bloom." Keble.
Such fragrant flowers do give most odorous smell. Spenser.
— O"dor*ous*ly, adv.
— O"dor*ous*ness, n.

ODS
Ods, interj.

Defn: A corruption of God's; — formerly used in oaths and ejaculatory phrases. "Ods bodikin." "Ods pity." Shak.

ODYL; ODYLE
Od"yl, Od"yle, n. Etym: [Gr. (Physics)

Defn: See Od. [Archaic].

ODYLIC
O*dyl"ic, a. (Physics)

Defn: Of or pertaining to odyle; odic; as, odylic force. [Archaic]

ODYSSEY
Od"ys*sey, n. Etym: [L. Odyssea, Gr. Odyssée.]

Defn: An epic poem attributed to Homer, which describes the return of
Ulysses to Ithaca after the siege of Troy.

OE
OE (e),

Defn: a diphthong, employed in the Latin language, and thence in the English language, as the representative of the Greek diphthong oe. In many words in common use, e alone stands instead of oe. Classicists prefer to write the diphthong oe separate in Latin words.

OECOID
Oe"coid, n. Etym: [Gr. -oid.] (Anat.)

Defn: The colorless porous framework, or stroma, of red blood corpuscles from which the zooid, or hemoglobin and other substances of the corpuscles, may be dissolved out.

OECOLOGY
OE*col"o*gy, n. Etym: [Gr.-logy.] (Biol.)

Defn: The various relations of animals and plants to one another and to the outer world.

OECONOMICAL
OE`co*nom"ic*al, a.

Defn: See Economical.

OECONOMICS
OE`co*nom"ics, n.

Defn: See Economics.

OECONOMY
OE*con"o*my, n.

Defn: See Economy.

OECUMENICAL
OEc`u*men"ic*al, a.

Defn: See Ecumenical.

OEDEMA
OE*de"ma, n. Etym: [NL., from Gr. (Med.)

Defn: A swelling from effusion of watery fluid in the cellular tissue beneath the skin or mucous membrance; dropsy of the subcutaneous cellular tissue. [Written also edema.]

OEDEMATOUS
OE*dem"a*tous, a. (Med.)

Defn: Pertaining to, or of the nature of, edema; affected with edema.

OEIL-DE-BOEUF
Oil`-de-bouf", n.; pl. Oils-de-bouf (#). [F., lit., eye of an ox.]
(Arch.)

Defn: A circular or oval window; — generally used of architecture of the 17th and 18th centuries. A famous room in the palace of Versailles bears this name, from the oval window opening into it.

OEIL-DE-PERDRIX
Oil`-de-per`drix", a. [F., lit., eye of a partridge.]

1. (Ornamental Art) Characterized by, or decorated with, small round points, spots, or rings; as, oil-de-perdrix pattern.

2. Having a brownish red color; — used esp. of light-colored red wine.

OEILIAD; OEILLADE
OE*il"iad, OEil"lade`, n. Etym: [F. oeillade, fr. oeel eye. See
Eyelent.]

Defn: A glance of the eye; an amorous look. [Obs.]
She gave strange oeillades and most speaking looks. Shak.

OELET
OE"let, n. Etym: [See Eyelet.]

Defn: An eye, bud, or shoot, as of a plant; an oilet. [Obs.] Holland.

OENANTHATE
OE*nan"thate, n. (Chem.)

Defn: A salt of the supposed oenanthic acid.

OENANTHIC
OE*nan"thic, a. Etym: [Gr. (Chem.)

Defn: Having, or imparting, the odor characteristic of the bouquet of wine; specifically used, formerly, to designate an acid whose ethereal salts were supposed to occasion the peculiar bouquet, or aroma, of old wine. Cf. OEnanthylic. OEnanthic acid, an acid obtained from oenanthic ether by the action of alkalies. — OEnanthic ether, an ethereal substance (not to be confused with the bouquet, or aroma, of wine) found in wine lees, and consisting of a complex mixture of the ethereal salts of several of the higher acids of the acetic acid series. It has an ethereal odor, and it used in flavoring artificial wines and liquors. Called also oil of wine. See Essential oil, under Essential.

OENANTHOL
OE*nan"thol, n. Etym: [oenanthylic + L. oleum oil.] (Chem.)

Defn: An oily substance obtained by the distillation of castor oil, recognized as the aldehyde of oenanthylic acid, and hence called also oenanthaldehyde.

OENANTHONE
OE*nan"thone, n. Etym: [oenanthic + -one] (Chem.)

Defn: The ketone of oenanthic acid.

OENANTHYL
OE*nan"thyl, n. Etym: [oennthic + -yl.] (Chem.)

Defn: A hydrocarbon radical formerly supposed to exist in oenanthic acid, now known to be identical with heptyl.

OENANTHYLATE
OE*nan"thyl*ate, n. (Chem.)

Defn: A salt of oenanthylic acid; as, potassium oenanthylate.

OENANTHYLIC
OE`nan*thyl"ic, a. (Chem.)

Defn: Pertaining to, derived from, or containing, oenanthyl; specifically, designating an acid formerly supposed to be identical with the acid in oenanthic ether, but now known to be identical with heptoic acid.

OENANTHYLIDENE
OE`nan*thyl"i*dene, n. (Chem.)

Defn: A colorless liquid hydrocarbon, having a garlic odor; heptine.

OENANTHYLOUS
OE*nan"thyl*ous, a. (Chem.)

Defn: Of, pertaining to, or designating, an acid formerly supposed to be the acid of oenanthylic ether, but now known to be a mixture of higher acids, especially capric acid. [Obs.]

OENOCYAN
OE`no*cy"an, n. Etym: [Gr. (Chem.)

Defn: The coloring matter of red wines.

OENOLOGY
OE*nol"o*gy, n. Etym: [Gr. -logy.]

Defn: Knowledge of wine, scientific or practical.

OENOMANIA OEn`o*ma"ni*a, n. Etym: [NL., fr. Gr. (Med.) (a) Delirium tremens. Rayer. (b) Dipsomania.

OENOMEL
OEn"o*mel, n. Etym: [Gr.

Defn: Wine mixed with honey; mead, [R.]

OENOMETER
OE*nom"e*ter, n. Etym: [Gr. -meter.]

Defn: See Alcoholometer.

OENOPHILIST
OE*noph"i*list, n. Etym: [Gr.

Defn: A lover of wine. [R.] Thackeray.

OENOTHIONIC
OE`no*thi*on"ic, a. Etym: [Gr. thionic.] (Chem.)

Defn: Pertaining to an acid now called sulphovinic, or ethyl sulphuric, acid.

O'ER
O'er, prep. & adv.

Defn: A contr. of Over. [Poetic]

OERSTED
Oer"sted, n. [After Hans Christian Oersted, Danish physicist.]
(Elec.)

Defn: The C.G.S. unit of magnetic reluctance or resistance, equal to the reluctance of a centimeter cube of air (or vacuum) between parallel faces. Also, a reluctance in which unit magnetomotive force sets up unit flux.

OESOPHAGUS; OESOPHAGEAL
OE*soph"a*gus, n., OE`so*phag"e*al, a., etc.

Defn: Same as Esophagus, Esophageal, etc.

OESTRIAN
OEs"tri*an, a. (Zoöl.)

Defn: Of or pertaining to the gadflies.
— n.

Defn: A gadfly.

OESTRUAL
OEs"tru*al, a. Etym: [See OEstrus.] (Physiol.)

Defn: Of or pertaining to sexual desire; — mostly applied to brute animals; as, the oestrual period; oestrual influence.

OESTRUATION
OEs`tru*a"tion, n. (Physiol.)

Defn: The state of being under oestrual influence, or of having sexual desire.

OESTRUS
OEs"trus, n. Etym: [L., a gadfly; also, frenzy, fr.Gr.

1. (Zoöl.)

Defn: A genus of gadflies. The species which deposits its larvæ in the nasal cavities of sheep is oestrus ovis.

2. A vehement desire; esp. (Physiol.), the periodical sexual impulse of animals; heat; rut.

OF Of, prep. Etym: [AS. of of, from, off; akin to D. & OS. af, G. ab off, OHG. aba from, away, Icel., Dan., Sw., & Goth. af, L. ab, Gr. apa. Cf.Off, A- (2), Ab-, After, Epi-.]

Defn: In a general sense, from, or out from; proceeding from; belonging to; relating to; concerning; — used in a variety of applications; as:

1. Denoting that from which anything proceeds; indicating origin, source, descent, and the like; as, he is of a race of kings; he is of noble blood. That holy thing which shall be born of thee shall be called the Son of God. Luke i. 35. I have received of the Lord that which also I delivered unto you. 1 Cor. xi. 23.

2. Denoting possession or ownership, or the relation of subject to attribute; as, the apartment of the consul: the power of the king; a man of courage; the gate of heaven. "Poor of spirit." Macaulay.

3. Denoting the material of which anything is composed, or that which it contains; as, a throne of gold; a sword of steel; a wreath of mist; a cup of water.

4. Denoting part of an aggregate or whole; belonging to a number or quantity mentioned; out of; from amongst; as, of this little he had some to spare; some of the mines were unproductive; most of the company. It is of the Lord's mercies that we are not consumed. Lam. iii. 22. It is a duty to communicate of those blessings we have received. Franklin.

5. Denoting that by which a person or thing is actuated or impelled; also, the source of a purpose or action; as, they went of their own will; no body can move of itself; he did it of necessity. For it was of the Lord to harden their hearts. Josh. xi. 20.

6. Denoting reference to a thing; about; concerning; relating to; as, to boast of one's achievements. Knew you of this fair work Shak.

7. Denoting nearness or distance, either in space or time; from; as, within a league of the town; within an hour of the appointed time.

8. Denoting identity or equivalence; — used with a name or appellation, and equivalent to the relation of apposition; as, the continent of America; the city of Rome; the Island of Cuba.

9. Denoting the agent, or person by whom, or thing by which, anything
is, or is done; by.
And told to her of [by] some. Chaucer.
He taught in their synagogues, being glorified of all. Luke iv. 15.
[Jesus] being forty days tempted of the devil. Luke iv. 1, 2.

Note: The use of the word in this sense, as applied to persons, is nearly obsolete.

10. Denoting relation to place or time; belonging to, or connected with; as, men of Athens; the people of the Middle Ages; in the days of Herod.

11. Denoting passage from one state to another; from. [Obs.] "O miserable of happy." Milton.

12. During; in the course of. Not be seen to wink of all the day. Shak. My custom always of the afternoon. Shak.

Note: Of may be used in a subjective or an objective sense. "The love of God" may mean, our love for God, or God's love for us.

Note: From is the primary sense of this preposition; a sense retained in off, the same word differently written for distinction. But this radical sense disappears in most of its application; as, a man of genius; a man of rare endowments; a fossil of a red color, or of an hexagonal figure; he lost all hope of relief; an affair of the cabinet; he is a man of decayed fortune; what is the price of corn In these and similar phrases, of denotes property or possession, or a relation of some sort involving connection. These applications, however all proceeded from the same primary sense. That which proceeds from, or is produced by, a person or thing, either has had, or still has, a close connection with the same; and hence the word was applied to cases of mere connection, not involving at all the idea of separation. Of consequence, of importance, value, or influence. — Of late, recently; in time not long past. — Of old, formerly; in time long past. — Of one's self, by one's self; without help or prompting; spontaneously. Why, knows not Montague, that of itself England is safe, if true within itself Shak.

OFF Off, adv. Etym: [OE. of, orig. the same word as R. of, prep., AS. of, adv. & prep. *194. See Of.]

Defn: In a general sense, denoting from or away from; as:

1. Denoting distance or separation; as, the house is a mile off.

2. Denoting the action of removing or separating; separation; as, to take off the hat or cloak; to cut off, to pare off, to clip off, to peel off, to tear off, to march off, to fly off, and the like.

3. Denoting a leaving, abandonment, departure, abatement, interruption, or remission; as, the fever goes off; the pain goes off; the game is off; all bets are off.

4. Denoting a different direction; not on or towards: away; as, to look off.

5. Denoting opposition or negation. [Obs.] The questions no way touch upon puritanism, either off or on. Bp. Sanderson. From off, off from; off. "A live coal…taken with the tongs from off the altar." Is. vi. 6. — Off and on. (a) Not constantly; not regularly; now and then; occasionally. (b) (Naut.) On different tacks, now toward, and now away from, the land. — To be off. (a) To depart; to escape; as, he was off without a moment's warning. (b) To be abandoned, as an agreement or purpose; as, the bet was declared to be off. [Colloq.] — To come off, To cut off, To fall off, To go off, etc. See under Come, Cut, Fall, Go, etc. — To get off. (a) To utter; to discharge; as, to get off a joke. (b) To go away; to escape; as, to get off easily from a trial. [Colloq.] — To take off, to mimic or personate. — To tell off (Mil.), to divide and practice a regiment or company in the several formations, preparatory to marching to the general parade for field exercises. Farrow. — To be well off, to be in good condition. — To be ill off, To be badly off, to be in poor condition.

OFF
Off, interj.

Defn: Away; begone; — a command to depart.

OFF
Off, prep.

Defn: Not on; away from; as, to be off one's legs or off the bed; two miles off the shore. Addison. Off hand. See Offhand. — Off side (Football), out of play; — said when a player has got in front of the ball in a scrimmage, or when the ball has been last touched by one of his own side behind him. — To be off color, to be of a wrong color. — To be off one's food, to have no appetite. (Colloq.)

OFF
Off, a.

1. On the farther side; most distant; on the side of an animal or a team farthest from the driver when he is on foot; in the United States, the right side; as, the off horse or ox in a team, in distinction from the Ant: nigh or Ant: near horse or ox; the off leg.

2. Designating a time when one is not strictly attentive to business or affairs, or is absent from his post, and, hence, a time when affairs are not urgent; as, he took an off day for fishing: an off year in politics. "In the off season." Thackeray. Off side. (a) The right hand side in driving; the farther side. See Gee. (b) (Cricket) See Off, n.

OFF
Off, n. (Cricket)

Defn: The side of the field that is on the right of the wicket keeper.

OFFAL
Of"fal, n. Etym: [Off + fall.]

1. The rejected or waste parts of a butchered animal.

2. A dead body; carrion. Shak.

3. That which is thrown away as worthless or unfit for use; refuse; rubbish. The off als of other profession. South.

OFFCUT
Off"cut`, n.

1. That which is cut off.

2. (Bookbinding)

Defn: A portion ofthe printed sheet, in certain sizes of books, that is cut off before folding.

OFFENCE
Of*fence", n.

Defn: See Offense.

OFFEND
Of*fend, v. t. [imp. & p. p. Offended; p. pr. & vb. n. Offending.]
Etym: [OF. offendre, L. offendere, offensum; ob (see Ob-) + fendere
(in comp.) to thrust, dash. See Defend.]

1. To strike against; to attack; to assail. [Obs.] Sir P. Sidney.

2. To displease; to make angry; to affront. A brother offended is harder to be won than a strong city. Prov. xviii. 19.

3. To be offensive to; to harm; to pain; to annoy; as, strong light offends the eye; to offend the conscience.

4. To transgress; to violate; to sin against. [Obs.] Marry, sir, he hath offended the law. Shak.

5. (Script.)

Defn: To oppose or obstruct in duty; to cause to stumble; to cause to sin or to fall. [Obs.] Who hath you misboden or offended. Chaucer. If thy right eye offend thee, pluck it out… And if thy right hand offend thee, cut it off. Matt. v. 29, 3O. Great peace have they which love thy law, and nothing shall offend them. Ps. cxix. 165.

OFFEND
Of*fend", v. i.

1. To transgress the moral or divine law; to commit a crime; to stumble; to sin. Whosoever shall keep the whole law, and yet offend in one point, he is guilty of all. James ii. 10. If it be a sin to cevet honor, I am the most offending soul alive. Shak.

2. To cause dislike, anger, or vexation; to displease. I shall offend, either to detain or give it. Shak. To offend against, to do an injury or wrong to; to commit an offense against. "We have offended against the Lord already." 2 Chron. xxviii. 13.

OFFENDANT
Of*fend"ant, n.

Defn: An offender. [R.] Holland.

OFFENDER
Of*fend"er, n.

Defn: One who offends; one who violates any law, divine or human; a
wrongdoer.
I and my son Solomon shall be counted offenders. 1 Kings i. 21.

OFFENDRESS
Of*fend"ress, n.

Defn: A woman who offends. Shak.

OFFENSE; OFFENCE
Of*fense", Of*fence", n. Etym: [F., fr. L. offensa. See Offend.]

1. The act of offending in any sense; esp., a crime or a sin, an affront or an injury. Who was delivered for our offenses, and was raised again for our justification. Rom. iv. 25. I have given my opinion against the authority of two great men, but I hope without offense to their memories. Dryden.

2. The state of being offended or displeased; anger; displeasure. He was content to give them just cause of offense, when they had power to make just revenge. Sir P. Sidney.

3. A cause or occasion of stumbling or of sin. [Obs.] Woe to that man by whom the offense cometh! Matt. xviii. 7.

Note: This word, like expense, is often spelled with a c. It ought, however, to undergo the same change with expense, the reasons being the same, namely, that s must be used in offensive as in expensive, and is found in the Latin offensio, and the French offense. To take offense, to feel, or assume to be, injured or affronted; to become angry or hostile. — Weapons of offense, those which are used in attack, in distinction from those of defense, which are used to repel.

Syn. — Displeasure; umbrage; resentment; misdeed; misdemeanor; trespass; transgression; delinquency; fault; sin; crime; affront; indignity; outrage; insult.

OFFENSEFUL
Of*fense"ful, a.

Defn: Causing offense; displeasing; wrong; as, an offenseful act.
[R.]

OFFENSELESS
Of*fense"less, a.

Defn: Unoffending; inoffensive.

OFFENSIBLE
Of*fen"si*ble, a.

Defn: That may give offense. [Obs.]

OFFENSION
Of*fen"sion, n. Etym: [OF., fr. L. offensio an offense.]

Defn: Assault; attack. [Obs.] Chaucer.

OFFENSIVE
Of*fen"sive, a. Etym: [Cf.F. offensif. See Offend.]

1. Giving offense; causing displeasure or resentment; displeasing; annoying; as, offensive words.

2. Giving pain or unpleasant sensations; disagreeable; revolting; noxious; as, an offensive smell; offensive sounds. "Offensive to the stomach." Bacon.

3. Making the first attack; assailant; aggressive; hence, used in attacking; — opposed to defensive; as, an offensive war; offensive weapons. League offensive and defensive, a leaque that requires all the parties to it to make war together against any foe, and to defend one another if attacked.

Syn. — Displeasing; disagreeable; distasteful; obnoxious; abhorrent; disgusting; impertinent; rude; saucy; reproachful; opprobrious; insulting; insolent; abusive; scurrilous; assailant; attacking; invading. — Of*fen"sive*ly, adv. — Of*fen"sive*ness, n.

OFFENSIVE
Of*fen"sive, n.

Defn: The state or posture of one who offends or makes attack; aggressive attitude; the act of the attacking party; — opposed to defensive. To act on the offensive, to be the attacking party.

OFFER Of"fer, v. t. [imp. & p. p. Offered; p. pr. & vb. n. Offering.] Etym: [OE. offren, AS. offrian to sacrifice, fr. L. offerre; ob (see OB-) + ferre to bear, bring. The English word was influenced by F. offrir to offer, of the same origin. See 1st Bear.]

1. To present, as an act of worship; to immolate; to sacrifice; to present in prayer or devotion; — often with up. Thou shalt offer every day a bullock for a sin offering for atonement. Ex. xxix. 36. A holy priesthood to offer up spiritual sacrifices. 1 Pet. ii. 5.

2. To bring to or before; to hold out to; to present for acceptance or rejection; as, to offer a present, or a bribe; to offer one's self in marriage. I offer thee three things. 2 Sam. xxiv. 12.

3. To present in words; to proffer; to make a proposal of; to suggest; as, to offer an opinion. With the infinitive as an objective: To make an offer; to declare one's willingness; as, he offered to help me.

4. To attempt; to undertake. All that offer to defend him. Shak.

5. To bid, as a price, reward, or wages; as, to offer a guinea for a ring; to offer a salary or reward.

6. To put in opposition to; to manifest in an offensive way; to threaten; as, to offer violence, attack, etc.

Syn.
— To propose; propound; move; proffer; tender; sacrifice; immolate.

OFFER
Of"fer, v. i.

1. To present itself; to be at hand. The occasion offers, and the youth complies. Dryden.

2. To make an attempt; to make an essay or a trial; — used with at.
"Without offering at any other remedy." Swift.
He would be offering at the shepherd's voice. L'Estrange.
I will not offer at that I can not master. Bacon.

OFFER
Of"fer, n. Etym: [Cf. F. offre, fr. offrir to offer, fr. L. offerre.
See Offer, v. t.]

1. The act of offering, bringing forward, proposing, or bidding; a proffer; a first advance. "This offer comes from mercy." Shak.

2. That which is offered or brought forward; a proposal to be accepted or rejected; a sum offered; a bid. When offers are disdained, and love denied. Pope.

3. Attempt; endeavor; essay; as, he made an offer to catch the ball. "Some offer and attempt." South.

OFFERABLE
Of"fer*a*ble, a.

Defn: Capable of being offered; suitable or worthy to be offered.

OFFERER
Of"fer*er, n.

Defn: One who offers; esp., one who offers something to God in worship. Hooker.

OFFERING
Of"fer*ing, n.

1. The act of an offerer; a proffering.

2. That which is offered, esp. in divine service; that which is presented as an expiation or atonement for sin, or as a free gift; a sacrifice; an oblation; as, sin offering. They are polluted offerings more abhorred Than spotted livers in the sacrifice. Shak.

3. A sum of money offered, as in church service; as, a missionary offering. Specif.: (Ch. of Eng.) Personal tithes payable according to custom, either at certain seasons as Christmas or Easter, or on certain occasions as marriages or christenings. [None] to the offering before her should go. Chaucer. Burnt offering, Drink offering, etc. See under Burnt. etc.

OFFERTORY Of"fer*to*ry, n.; pl. Offertories . Etym: [L. offertorium the place to which offerings were brought, in LL. offertory: cf.F. offertoire.]

1. The act of offering, or the thing offered. [Obs. or R.] Bacon. Bp. Fell.

2. (R.C.Ch.) (a) An anthem chanted, or a voluntary played on the organ, during the offering and first part of the Mass. (b) That part of the Mass which the priest reads before uncovering the chalice to offer up the elements for consecration. (c) The oblation of the elements.

3. (Ch. of Eng. & Prot. Epis. Ch.) (a) The Scripture sentences said or sung during the collection of the offerings. (b) The offerings themselves.

OFFERTURE
Of"fer*ture, n. Etym: [LL. offertura an offering.]

Defn: Offer; proposal; overture. [Obs.]
More offertures and advantages to his crown. Milton.

OFFHAND
Off"hand`, a.

Defn: Instant; ready; extemporaneous; as, an offhand speech; offhand excuses. — adv.

Defn: In an offhand manner; as, he replied offhand.

OFFICE Of"fice, n. Etym: [F., fr. L. officium, for opificium; ops ability, wealth, holp + facere to do or make. See Opulent, Fact.]

1. That which a person does, either voluntarily or by appointment, for, or with reference to, others; customary duty, or a duty that arises from the relations of man to man; as, kind offices, pious offices. I would I could do a good office between you. Shak.

2. A special duty, trust, charge, or position, conferred by authority and for a public purpose; a position of trust or authority; as, an executive or judical office; a municipal office.

3. A charge or trust, of a sacred nature, conferred by God himself; as, the office of a priest under the old dispensation, and that of the apostles in the new. Inasmuch as I am the apostle of the Gentiles, I magnify mine office. Rom. xi. 13.

4. That which is performed, intended, or assigned to be done, by a particular thing, or that which anything is fitted to perform; a function; — answering to duty in intelligent beings. They [the eyes] resign their office and their light. Shak. Hesperus, whose office is to bring Twilight upon the earth. Milton. In this experiment the several intervals of the teeth of the comb do the office of so many prisms. Sir I. Newton.

5. The place where a particular kind of business or service for others is transacted; a house or apartment in which public officers and others transact business; as, the register's office; a lawyer's office.

6. The company or corporation, or persons collectively, whose place of business is in an office; as, I have notified the office.

7. pl.

Defn: The apartments or outhouses in which the domestics discharge
the duties attached to the service of a house, as kitchens, pantries,
stables, etc. [Eng.]
As for the offices, let them stand at distance. Bacon.

8. (Eccl.)

Defn: Any service other than that of ordination and the Mass; any
prescribed religious service.
This morning was read in the church, after the office was done, the
declaration setting forth the late conspiracy against the king's
person. Evelyn.
Holy office. Same as Inquisition, n., 3.
— Houses of office. Same as def. 7 above. Chaucer.
— Little office (R.C.Ch.), an office recited in honor of the Virgin
Mary.
— Office bearer, an officer; one who has a specific office or duty
to perform.
— Office copy (Law), an authenticated or certified copy of a
record, from the proper office. See Certified copies, under Copy.
Abbott.
— Office-found (Law), the finding of an inquest of office. See
under Inquest.
— Office holder. See Officeholder in the Vocabulary

OFFICE
Of`fice, v. t.

Defn: To perform, as the duties of an office; to discharge. [Obs.]
Shak.

OFFICEHOLDER
Of"fice*hold"er, n.

Defn: An officer, particularly one in the civil service; a placeman.

OFFICER
Of"fi*cer, n. Etym: [F. officier. See Office, and cf. Official, n.]

1. One who holds an office; a person lawfully invested with an office, whether civil, military, or ecclesiastical; as, a church officer; a police officer; a staff officer. "I am an officer of state." Shak.

2. (U. S. Mil.)

Defn: Specifically, a commissioned officer, in distinction from a warrant officer. Field officer, General officer, etc. See under Field, General. etc. — Officer of the day (Mil.), the officer who, on a given day, has charge for that day of the quard, prisoners, and police of the post or camp. — Officer of the deck, or Officer of the watch (Naut.), the officer temporarily in charge on the deck of a vessel, esp. a war vessel.

OFFICER
Of"fi*cer, v. t. [imp. & p. p. Officered; p. pr. & vb. n.
Officering.]

1. To furnish with officers; to appoint officers over. Marshall.

2. To command as an officer; as, veterans from old regiments officered the recruits.

OFFICE WIRE
Of"fice wire`. (Elec.)

Defn: Copper wire with a strong but light insulation, used in wiring houses, etc.

OFFICIAL Of*fi"cial, a. Etym: [L. officialis: cf. F. officiel. See Office, and cf. Official, n.]

1. Of or pertaining to an office or public trust; as, official
duties, or routine.
That, in the official marks invested, you Anon do meet the senate.
Shak.

2. Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority; as, an official statement or report.

3. (Pharm.)

Defn: Approved by authority; sanctioned by the pharmacopoeia; appointed to be used in medicine; as, an official drug or preparation. Cf. Officinal.

4. Discharging an office or function. [Obs.] The stomach and other parts official unto nutrition. Sir T. Browne.

OFFICIAL Of*fi"cial, n. Etym: [L. officialis a magistrate's servant or attendant: cf.F. official. See Official, a., and cf. Officer.]

1. One who holds an office; esp., a subordinate executive officer or attendant.

2. An ecclesiastical judge appointed by a bishop, chapter, archdeacon, etc., with charge of the spiritual jurisdiction. Blackstone.

OFFICIALISM
Of*fi"cial*ism, n.

Defn: The state of being official; a system of official government; also, adherence to office routine; red-tapism. Officialism may often drift into blunders. Smiles.

OFFICIALITY
Of*fi`ci*al`i*ty, n.

Defn: See Officialty.

OFFICIALLY
Of*fi"cial*ly, adv.

Defn: By the proper officer; by virtue of the proper authority; in pursuance of the special powers vested in an officer or office; as, accounts or reports officially vertified or rendered; letters officially communicated; persons officially notified.

OFFICIALTY
Of*fi"cial*ty, n. Etym: [Cf.F. officialité.]

Defn: The charge, office, court, or jurisdiction of an official.
Ayliffe.

OFFICIANT
Of*fi"ciant, n. Etym: [L. officians, p.pr. See Officiate.] (Eccl.)

Defn: The officer who officiates or performs an office, as the burial office. Shipley.

OFFICIARY
Of*fi"ci*a*ry, a.

Defn: Of or pertaining to an office or an officer; official. [R.]
Heylin.

OFFICIATE
Of*fi"ci*ate, v. i. [imp. & p. p. Officiated; p. pr. & vb. n.
Officiating.] Etym: [LL. officiare. See Office.]

Defn: To act as an officer in performing a duty; to transact the business of an office or public trust; to conduct a public service. Bp. Stillingfleet.

OFFICIATE
Of*fi"ci*ate, v. t.

Defn: To discharge, perform, or supply, as an official duty or
function. [Obs.]
Merely to officiate light Round this opacous earth. Milton.

OFFICIATOR
Of*fi"ci*a`tor, n.

Defn: One who officiates. Tylor.

OFFICINAL Of*fic"i*nal, a. Etym: [F., fr. L. officina a workshop, contr.fr. opificina, fr. opifex a workman; opus work + facere to make or do.]

1. Used in a shop, or belonging to it. [Obs. or R.] Johnson.

2. (Pharm.)

Defn: Kept in stock by apothecaries; — said of such drugs and medicines as may be obtained without special preparation or compounding; not magistral.

Note: This term is often interchanged with official, but in strict use officinal drugs are not necessarily official. See Official, a., 3.

OFFICIOUS
Of*fi"cious, a. Etym: [L. officiosus: cf.F. officieux. See Office.]

1. Pertaining to, or being in accordance with, duty. [R.] If there were any lie in the case, it could be no more than as officious and venial one. Note on Gen. xxvii. (Douay version).

2. Disposed to serve; kind; obliging. [Archaic] Yet not to earth are those bright luminaries Officious. Milton. They were tolerably well bred, very officious, humane, and hospitable. Burke.

3. Importunately interposing services; intermeddling in affairs in which one has no concern; meddlesome. You are too officious In her behalf that scorns your services. Shak.

Syn.
— Impertinent; meddling. See Impertinent.
— Of*fi"cious*ly, adv.
— Of*fi"cious*ness, n.

OFFING
Off"ing, n. Etym: [From Off.]

Defn: That part of the sea at a good distance from the shore, or where there is deep water and no need of a pilot; also, distance from the shore; as, the ship had ten miles offing; we saw a ship in the offing.

OFFISH
Off"ish, a.

Defn: Shy or distant in manner. [Colloq. U.S.]

OFFLET
Off"let, n. Etym: [Off + let.]

Defn: A pipe to let off water.

OFFPRINT
Off"print`, n.

Defn: A reprint or excerpt.

OFFPRINT
Off`print", v. t. [Off + print.]

Defn: To reprint (as an excerpt); as, the articles of some magazines are offprinted from other magazines.

OFFSCOURING
Off"scour`ing, n. Etym: [Off + scour.]

Defn: That which is scoured off; hence, refuse; rejected matter; that which is vile or despised. Lam. iii. 45.

OFFSCUM
Off"scum`, n. Etym: [Off + scum.]

Defn: Removed scum; refuse; dross.

OFFSET
Off"set`, n. Etym: [Off + set. Cf. Set-off.]

Defn: In general, that which is set off, from, before, or against, something; as: —

1. (Bot.)

Defn: A short prostrate shoot, which takes root and produces a tuft of leaves, etc. See Illust. of Houseleek.

2. A sum, account, or value set off against another sum or account, as an equivalent; hence, anything which is given in exchange or retaliation; a set-off.

3. A spur from a range of hills or mountains.

4. (Arch.)

Defn: A horizontal ledge on the face of a wall, formed by a diminution of its thickness, or by the weathering or upper surface of a part built out from it; — called also set-off.

5. (Surv.)

Defn: A short distance measured at right angles from a line actually run to some point in an irregular boundary, or to some object.

6. (Mech.)

Defn: An abrupt bend in an object, as a rod, by which one part is turned aside out of line, but nearly parallel, with the rest; the part thus bent aside.

7. (Print.)

Defn: A more or less distinct transfer of a printed page or picture to the opposite page, when the pages are pressed together before the ink is dry or when it is poor. Offset staff (Surv.), a rod, usually ten links long, used in measuring offsets.

OFFSET
Off*set", v. t. [imp. & p. p. Offset; p. pr. & vb. n. Offsetting.]

1. To set off; to place over against; to balance; as, to offset one account or charge against another.

2. To form an offset in, as in a wall, rod, pipe, etc.

OFFSET
Off"set, v. i. (Printing)

Defn: To make an offset.

OFFSHOOT
Off"shoot`, n. Etym: [Off + shoot.]

Defn: That which shoots off or separates from a main stem, channel, family, race, etc.; as, the offshoots of a tree.

OFFSHORE
Off"shore", a.

Defn: From the shore; as, an offshore wind; an offshore signal.

OFFSKIP
Off"skip`, n. Etym: [Off + -skip, as in landskip.] (Paint.)

Defn: That part of a landscape which recedes from the spectator into distance. [R.] Fairholt.

OFFSPRING
Off"spring`, n.sing. & pl. Etym: [Off + spring.]

1. The act of production; generation. [Obs.]

2. That which is produced; a child or children; a descendant or descendants, however remote from the stock. To the gods alone Our future offspring and our wives are known. Dryden.

3. Origin; lineage; family. [Obs.] Fairfax.

OFFTAKE
Off"take`, n. [Off + take.]

1. Act of taking off; specif., the taking off or purchase of goods.

2. Something taken off; a deduction.

3. A channel for taking away air or water; also, the point of beginning of such a channel; a take-off.

OFFUSCATE; OFFUSCATION
Of*fus"cate, Of`fus*ca`tion.

Defn: See Obfuscate, Obfuscation. [Obs.]

OFT
Oft (ôft; 115), adv. Etym: [AS. oft; akin to OS. & G. oft, OHG. ofto,
Sw. ofta, Dan. ofte, Icel.opt, Goth. ufta; of uncertain origin. Cf.
Often.]

Defn: Often; frequently; not rarely; many times. [Poetic] Chaucer.
Oft she rejects, but never once offends. Pope.

OFT
Oft, a.

Defn: Frequent; often; repeated. [Poetic]

OFTEN Of`ten, adv. [Compar. Oftener; superl. Oftenest.] Etym: [Formerly also ofte, fr. oft. See Oft., adv.]

Defn: Frequently; many times; not seldom.

OFTEN
Of"ten, a.

Defn: Frequent; common; repeated. [R.] "Thine often infirmities." 1
Tim. v. 23.
And weary thee with often welcomes. Beau. & Fl.

OFTENNESS
Of"ten*ness, n.

Defn: Frequency. Hooker.

OFTENSITH
Of"ten*sith, adv. Etym: [Often + sith time.]

Defn: Frequently; often. [Obs.]
For whom I sighed have so oftensith. Gascoigne.

OFTENTIDE
Of"ten*tide", adv. Etym: [Often + tide time.]

Defn: Frequently; often. [Obs.] Robert of Brunne.

OFTENTIMES
Of"ten*times`, adv. Etym: [Often + time. Cf. -wards.]

Defn: Frequently; often; many times. Wordsworth.

OFTER
Oft"er, adv.

Defn: Compar. of Oft. [Obs.] Chaucer.

OFTTIMES
Oft"times`, adv. Etym: [Oft + time. Cf. -wards.]

Defn: Frequently; often. Milton.

OGAM
Og"am, n.

Defn: Same as Ogham.

OGDOAD
Og"do*ad, n. Etym: [Gr. , , from

Defn: A thing made up of eight parts. Milman.

OGDOASTICH
Og`do*as`tich, n. Etym: [Gr.

Defn: A poem of eight lines. [Obs.] Selden

OGEE O*gee", n. Etym: [F. ogive, augive, LL. augiva, of uncertain origin; cf.LL. ogis a support, prop. L. augere to increase, strengthen, Sp. auge highest point of power or fortune, apogee, Ar. auj, an astronomical term.]

1. (Arch.)

Defn: A molding, the section of which is the form of the letter S, with the convex part above; cyma reversa. See Illust. under Cyma.

2. Hence, any similar figure used for any purpose. Ogee arch (Arch.), a pointed arch, each of the sides of which has the curve of an ogee, that is, has a reversed curve near the apex.

OGEECHEE LIME O*gee"chee lime`. Etym: [So named from the Ogeechee River in Georgia.] (Bot.) (a) The acid, olive-shaped, drupaceous fruit of a species of tupelo (Nyssa capitata) which grows in swamps in Georgia and Florida. (b) The tree which bears this fruit.

OGGANITION Og`ga*ni"tion, n. Etym: [L.oggannire to snarl at; ob (see Ob-) + gannire to yelp.]

Defn: Snarling; grumbling. [R.] Bp. Montagu.

OGHAM
Og"ham, n. Etym: [Ir.]

Defn: A particular kind of writing practiced by the ancient Irish, and found in inscriptions on stones, metals, etc. [Written also ogam.]

OGIVE O"give, n. Etym: [F. ogive, OF. augive a pointed arch, LL. augiva a double arch of two at right angles.] (Arch.)

Defn: The arch or rib which crosses a Gothic vault diagonally.

OGLE O"gle (og'l), v. t. [imp. & p. p. Ogled; p. pr. & vb. n. Ogling.] Etym: [From a Dutch word corresponding to G. äugeln to ogle, fr. auge eye; cf. D. ooglonken to ogle, OD. oogen to cast sheep's eyes upon, ooge eye. See Eye.]

Defn: To view or look at with side glances, as in fondness, or with a design to attract notice. And ogling all their audience, ere they speak. Dryden.

OGLE
O"gle, n.

Defn: An amorous side glance or look. Byron.

OGLER
O"gler, n.

Defn: One who ogles. Addison.

OGLIO
O"gli*o, n.

Defn: See Olio.

OGRE O"gre, n. Etym: [F., fr. Sp. ogro, fr. L. Orcus the god of the infernal regions; also, the lower world, hell.]

Defn: An imaginary monster, or hideous giant of fairy tales, who lived on human beings; hence, any frightful giant; a cruel monster. His schoolroom must have resembled an ogre's den. Maccaulay.

OGREISH
O"gre*ish, a.

Defn: Resembling an ogre; having the character or appearance of an ogre; suitable for an ogre. "An ogreish kind of jocularity." Dickens.

OGRESS
O"gress, n. Etym: [F.ogresse. See Ogre.]

Defn: A female ogre. Tennyson.

OGRISM; OGREISM
O"grism, O"gre*ism, n.

Defn: The character or manners of an ogre.

OGYGIAN
O*gyg"i*an, a. Etym: [L. Ogygius, Gr.

Defn: Of or pertaining to Ogyges, a mythical king of ancient Attica, or to a great deluge in Attica in his days; hence, primeval; of obscure antiquity.

OH
Oh, interj. Etym: [See O, interj.]

Defn: An exclamation expressing various emotions, according to the tone and manner, especially surprise, pain, sorrow, anxiety, or a wish. See the Note under O.

OHM
Ohm, n. Etym: [So called from the German electrician, G.S. Ohm.]
(Elec.)

Defn: The standard unit in the measure of electrical resistance, being the resistance of a circuit in which a potential difference of one volt produces a current of one ampére. As defined by the International Electrical Congress in 1893, and by United States Statute, it is a resistance substantially equal to 109 units of resistance of the C.G.S. system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the international ohm. Ohm's law (Elec.), the statement of the fact that the strength or intensity of an electrical current is directly proportional to the electro-motive force, and inversely proportional to the resistance of the circuit.

OHMMETER
Ohm"me`ter, n. [Ohm + meter.] (Elec.)

Defn: An instrument for indicating directly resistance in ohms.

OHO
O*ho", interj.

Defn: An exclamation of surprise, etc.

-OID -oid. Etym: [Gr. wit: cf.F. -oïde, L. -oïdes.]

Defn: A suffix or combining form meaning like, resembling, in the form of; as in anthropoid, asteroid, spheroid.

OIDIUM
O*ïd"i*um, n. Etym: [NL., dim. fr. Gr. (Bot.)

Defn: A genus of minute fungi which form a floccose mass of filaments on decaying fruit, etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera, among them the vine mildew (Oïdium Tuckeri), which has caused much injury to grapes.

OIL
Oil, n. Etym: [OE. oile, OF. oile, F. huile, fr. L. oleum; akin to
Gr. Olive.]

Defn: Any one of a great variety of unctuous combustible substances, not miscible with water; as, olive oil, whale oil, rock oil, etc. They are of animal, vegetable, or mineral origin and of varied composition, and they are variously used for food, for solvents, for anointing, lubrication, illumination, etc. By extension, any substance of an oily consistency; as, oil of vitriol.

Note: The mineral oils are varieties of petroleum. See Petroleum. The vegetable oils are of two classes, essential oils (see under Essential), and natural oils which in general resemble the animal oils and fats. Most of the natural oils and the animal oils and fats consist of ethereal salts of glycerin, with a large number of organic acids, principally stearic, oleic, and palmitic, forming respectively stearin, olein, and palmitin. Stearin and palmitin prevail in the solid oils and fats, and olein in the liquid oils. Mutton tallow, beef tallow, and lard are rich in stearin, human fat and palm oil in palmitin, and sperm and cod-liver oils in olein. In making soaps, the acids leave the glycerin and unite with the soda or potash. Animal oil, Bone oil, Dipple's oil, etc. (Old Chem.), a complex oil obtained by the distillation of animal substances, as bones. See Bone oil, under Bone. — Drying oils, Essential oils. (Chem.) See under Drying, and Essential. — Ethereal oil of wine, Heavy oil of wine. (Chem.) See under Ethereal. — Fixed oil. (Chem.) See under Fixed. — Oil bag (Zoöl.), a bag, cyst, or gland in animals, containing oil. — Oil beetle (Zoöl.), any beetle of the genus Meloe and allied genera. When disturbed they emit from the joints of the legs a yellowish oily liquor. Some species possess vesicating properties, and are used instead of cantharides. — Oil box, or Oil cellar (Mach.), a fixed box or reservoir, for lubricating a bearing; esp., the box for oil beneath the journal of a railway-car axle. — Oil cake. See under Cake. — Oil cock, a stopcock connected with an oil cup. See Oil cup. — Oil color. (a) A paint made by grinding a coloring substance in oil. (b) Such paints, taken in a general sense. — Oil cup, a cup, or small receptacle, connected with a bearing as a lubricator, and usually provided with a wick, wire, or adjustable valve for regulating the delivery of oil. — Oil engine, a gas engine worked with the explosive vapor of petroleum. — Oil gas, inflammable gas procured from oil, and used for lighting streets, houses, etc. — Oil gland. (a) (Zoöl.) A gland which secretes oil; especially in birds, the large gland at the base of the tail. (b) (Bot.) A gland, in some plants, producing oil. — Oil green, a pale yellowish green, like oil. — Oil of brick, empyreumatic oil obtained by subjecting a brick soaked in oil to distillation at a high temperature, — used by lapidaries as a vehicle for the emery by which stones and gems are sawn or cut. Brande & C. — Oil of talc, a nostrum made of calcined talc, and famous in the 17th century as a cosmetic. [Obs.] B. Jonson. — Oil of vitriol (Chem.), strong sulphuric acid; — so called from its oily consistency and from its forming the vitriols or sulphates. — Oil of wine, . — Oil painting. (a) The art of painting in oil colors. (b) Any kind of painting of which the pigments are originally ground in oil. — Oil palm (Bot.), a palm tree whose fruit furnishes oil, esp. Elæis Guineensis. See Elæis. — Oil sardine (Zoöl.), an East Indian herring (Clupea scombrina), valued for its oil. — Oil shark (Zoöl.) (a) The liver shark. (b) The tope. — Oil still, a still for hydrocarbons, esp. for petroleum. — Oil test, a test for determining the temperature at which petroleum oils give off vapor which is liable to explode. — Oil tree. (Bot.) (a) A plant of the genus Ricinus (R. communis), from the seeds of which castor oil is obtained. (b) An Indian tree, the mahwa. See Mahwa. (c) The oil palm. — To burn the midnight oil, to study or work late at night. — Volatle oils. See Essential oils, under Essential.

OIL
Oil, v. t. [imp. & p. p. Oiled; p. pr. & vb. n. Oiling.]

Defn: To smear or rub over with oil; to lubricate with oil; to anoint with oil.

OILBIRD
Oil"bird`, n. (Zoöl.)

Defn: See Guacharo.

OILCLOTH
Oil"cloth", n.

Defn: Cloth treated with oil or paint, and used for marking garments, covering flooors, etc.

OILED
Oiled, a.

Defn: Covered or treated with oil; dressed with, or soaked in, oil.
Oiled silk, silk rendered waterproof by saturation with boiled oil.

OILER
Oil"er, n.

1. One who deals in oils.

2. One who, or that which, oils.

OILERY
Oil"er*y, n. Etym: [Cf.F. huilerie.]

Defn: The business, the place of business, or the goods, of a maker of, or dealer in, oils.

OILINESS
Oil"i*ness, n.

Defn: The quality of being oily. Bacon.

OILLET Oil"let, n. Etym: [See Eyelet.] (Arch.) (a) A small opening or loophole, sometimes circular, used in mediæval fortifications. (b) A small circular opening, and ring of moldings surrounding it, used in window tracery in Gothic architecture. [Written also oylet.]

OILMAN
Oil"man, n.; pl. Oilmen (.

Defn: One who deals in oils; formerly, one who dealt in oils and pickles.

OILNUT
Oil"nut`, n. (Bot.)

Defn: The buffalo nut. See Buffalo nut, under Buffalo.

Note: The name is also applied to various nuts and seeds yielding oil, as the butternut, cocoanut, oil-palm nut.

OILSEED Oil"seed`, n. (Bot.) (a) Seed from which oil is expressed, as the castor bean; also, the plant yielding such seed. See Castor bean. (b) A cruciferous herb (Camelina sativa). (c) The sesame.

OILSKIN
Oil"skin`, n.

Defn: Cloth made waterproof by oil.

OILSTONE
Oil"stone`, n.

Defn: A variety of hone slate, or whetstone, used for whetting tools when lubricated with oil.

OILY
Oil"y, a. [Compar. Oilier; superl. Oiliest.]

1. Consisting of oil; containing oil; having the nature or qualities of oil; unctuous; oleaginous; as, oily matter or substance. Bacon.

2. Covered with oil; greasy; hence, resembling oil; as, an oily appearance.

3. Smoothly subservient; supple; compliant; plausible; insinuating.
"This oily rascal." Shak.
His oily compliance in all alterations. Fuller.
Oily grain (Bot.), the sesame.
— Oily palm, the oil palm.

OINEMENT
Oi"ne*ment, n.

Defn: Ointment. [Obs.] Chaucer.

OINOMANIA
Oi`no*ma"ni*a, n.

Defn: See oenomania.

OINT Oint, v. t. [imp. & p. p. Ointed; p. pr & vb. n. Ointing.] Etym: [F. oint, p.p. of oindre, L. ungere. See Anoint, Ointment.]

Defn: To anoint. [Obs.] Dryden.

OINTMENT Oint"ment, n. Etym: [OE. oinement, OF. oignement, fr.F. oindre to anoint, L. ungere, unguere; akin to Skr. a, and to G. anke (in Switzerland) butter. The first t in the E. word is due to the influence of anoint. Cf. Anoint, Unguent.]

Defn: That which serves to anoint; any soft unctuous substance used for smearing or anointing; an unguent.

OJIBWAYS
O*jib"ways, n. pl.; sing. Ojibway. (Ethnol.)

Defn: Same as Chippeways.

OJO
O"jo, n. Etym: [Sp., prop., an eye.]

Defn: A spring, surrounded by rushes or rank grass; an oasis.
[Southwestern U.S.] Bartlett.

OKAPI O*ka"pi, n. [Native name on the borders of Belgian Kongo, possibly the same word as Mpongwe okapo lean.]

Defn: A peculiar mammal (Okapia johnostoni) closely related to the giraffe, discovered in the deep forests of Belgian Kongo in 1900. It is smaller than an ox, and somewhat like a giraffe, except that the neck is much shorter. Like the giraffe, it has no dewclaws. There is a small prominence on each frontal bone of the male. The color of the body is chiefly reddish chestnut, the cheeks are yellowish white, and the fore and hind legs above the knees and the haunches are striped with purplish black and cream color.

OKE Oke, n. Etym: [Turk. okkah, fr. Ar. ukiyah, wakiyah, prob. fr. Gr. uncia. Cf. Ounce a weight.]

1. A Turkish and Egyptian weight, equal to about 2

2. An Hungarian and Wallachian measure, equal to about 2

OKENITE
O"ken*ite, n. Etym: [Prob. from Lorenz Oken, a German naturalist.]
(Min.)

Defn: A massive and fibrous mineral of a whitish color, chiefly hydrous silicate of lime.

OKER
O"ker, n. (Min.)

Defn: See Ocher.

OKRA
O"kra, n. (Bot.)

Defn: An annual plant (Abelmoschus, or Hibiscus, esculentus), whose green pods, abounding in nutritious mucilage, are much used for soups, stews, or pickles; gumbo. [Written also ocra and ochra.]

-OL -ol. Etym: [From alcohol.] (Chem.)

Defn: A suffix denoting that the substance in the name of which it appears belongs to the series of alcohols or hydroxyl derivatives, as carbinol, glycerol, etc.

OLAY
O"lay, n. pl. Etym: [Tamil olai.]

Defn: Palm leaves, prepared for being written upon with a style pointed with steel. [Written also ola.] Balfour (Cyc. of India).

OLD
Old, n.

Defn: Open country. [Obs.] See World. Shak.

OLD Old, a. [Compar. Older; superl. Oldest.] Etym: [OE. old, ald, AS. ald, eald; akin to D. oud, OS. ald, OFries. ald, old, G. alt, Goth. alpeis, and also to Goth. alan to grow up, Icel. ala to bear, produce, bring up, L. alere to nourish. Cf. Adult, Alderman, Aliment, Auld, Elder.]

1. Not young; advanced far in years or life; having lived till toward the end of the ordinary term of living; as, an old man; an old age; an old horse; an old tree. Let not old age disgrace my high desire. Sir P. Sidney. The melancholy news that we grow old. Young.

2. Not new or fresh; not recently made or produced; having existed for a long time; as, old wine; an old friendship. "An old acquaintance." Camden.

3. Formerly existing; ancient; not modern; preceding; original; as, an old law; an old custom; an old promise. "The old schools of Greece." Milton. "The character of the old Ligurians." Addison.

4. Continued in life; advanced in the course of existence; having (a certain) length of existence; — designating the age of a person or thing; as, an infant a few hours old; a cathedral centuries old. And Pharaoh said unto Jacob, How old art thou Cen. xlvii. 8.

Note: In this use old regularly follows the noun that designates the age; as, she was eight years old.

5. Long practiced; hence, skilled; experienced; cunning; as, an old offender; old in vice. Vane, young in years, but in sage counsel old. Milton.

6. Long cultivated; as, an old farm; old land, as opposed to Ant: new land, that is, to land lately cleared.

7. Worn out; weakened or exhausted by use; past usefulness; as, old shoes; old clothes.

8. More than enough; abundant. [Obs.] If a man were porter of hell gate, he should have old turning the key. Shak.

9. Aged; antiquated; hence, wanting in the mental vigor or other qualities belonging to youth; — used disparagingly as a term of reproach.

10. Old-fashioned; wonted; customary; as of old; as, the good old times; hence, colloquially, gay; jolly.

11. Used colloquially as a term of cordiality and familiarity. "Go thy ways, old lad." Shak. Old age, advanced years; the latter period of life. — Old bachelor. See Bachelor, 1. — Old Catholics. See under Catholic. — Old English. See under English. n., 2. — Old Nick, Old Scratch, the devil. — Old lady (Zoöl.), a large European noctuid moth (Mormo maura). — Old maid. (a) A woman, somewhat advanced in years, who has never been married; a spinster. (b) (Bot.) A West Indian name for the pink- flowered periwinkle (Vinca rosea). (c) A simple game of cards, played by matching them. The person with whom the odd card is left is the old maid. — Old man's beard. (Bot.) (a) The traveler's joy (Clematis Vitalba). So named from the abundant long feathery awns of its fruit. (b) The Tillandsia usneoides. See Tillandsia. — Old man's head (Bot.), a columnar cactus (Pilocereus senilis), native of Mexico, covered towards the top with long white hairs. — Old red sandstone (Geol.), a series of red sandstone rocks situated below the rocks of the Carboniferous age and comprising various strata of siliceous sandstones and conglomerates. See Sandstone, and the Chart of Geology. — Old school, a school or party belonging to a former time, or preserving the character, manner, or opinious of a former time; as, a gentleman of the old school; — used also adjectively; as, Old-School Presbyterians. — Old sledge, an old and well-known game of cards, called also all fours, and high, low, Jack, and the game. — Old squaw (Zoöl.), a duck (Clangula hyemalis) inhabiting the northern parts of both hemispheres. The adult male is varied with black and white and is remarkable for the length of its tail. Called also longtailed duck, south southerly, callow, hareld, and old wife. — Old style. (Chron.) See the Note under Style. — Old Testament. See under Testament. — Old wife. [In the senses b and cwritten also oldwife.] (a) A prating old woman; a gossip. Refuse profane and old wives' fables. 1 Tim. iv. 7. (b) (Zoöl.) The local name of various fishes, as the European black sea bream (Cantharus lineatus), the American alewife, etc. (c) (Zoöl.) A duck; the old squaw. — Old World, the Eastern Hemisphere.

Syn. — Aged; ancient; pristine; primitive; antique; antiquated; old- fashioned; obsolete. See Ancient.

OLD DOMINION
Old Dominion.

Defn: Virginia; — a name of uncertain origin, perh. from the old designation of the colony as "the Colony and Dominion of Virginia."

OLDEN
Old"en, a.

Defn: Old; ancient; as, the olden time. "A minstrel of the olden stamp." J. C. Shairp.

OLDEN
Old"en, v. i.

Defn: To grow old; to age. [R.]
She had oldened in that time. Thackeray.

OLD-FASHIONED
Old`-fash"ioned, a.

Defn: Formed according to old or obsolete fashion or pattern;
adhering to old customs or ideas; as, an old-fashioned dress, girl.
"Old-fashioned men of wit." Addison.
This old-fashioned, quaint abode. Longfellow.

OLD-GENTLEMANLY
Old`-gen"tle*man*ly, a.

Defn: Pertaining to an old gentleman, or like one. Byron.

OLDISH
Old"ish, a.

Defn: Somewhat old.

OLD LANG SYNE
Old` lang syne".

Defn: See Auld lang syne.

OLD LINE STATE
Old Line State.

Defn: Maryland; a nickname, alluding to the fact that its northern boundary in Mason and Dixon's line.

OLD-MAIDISH
Old`-maid"ish, a.

Defn: Like an old maid; prim; precise; particular.

OLD-MAIDISM
Old`-maid"ism, n.

Defn: The condition or characteristics of an old maid. G. Eliot.

OLDNESS
Old"ness, n.

Defn: The state or quality of being old; old age.

OLDSTER
Old"ster, n. Etym: [Cf. Youngster.]

Defn: An old person. [Jocular] H. Kingsley.

OLD-WOMANISH
Old`-wom`an*ish, a.

Defn: Like an old woman; anile.
— Old`-wom"an*ish*ness, n.

OLEA
O"le*a, n. Etym: [L. olive. See Olive.] (Bot.)

Defn: A genus of trees including the olive.

Note: The Chinese Olea fragrans, noted for its fragrance, and the American devilwood (Olea Americana) are now usually referred to another genus (Osmanthus).

OLEACEOUS
O`le*a"ceous, a. Etym: [L. oléaceus of the olive tree.] (Bot.)

Defn: Of, pertaining to, or resembling, a natural order of plants
(Oleaceæ), mostly trees and shrubs, of which the olive is the type.
It includes also the ash, the lilac, the true jasmine, and fringe
tree.

OLEAGINOUS O`le*ag`i*nous, a. Etym: [L. oleaginus, oleagineus, belonging to the olive, fr. olea olive: cf. F. oléagineux. See Olive, Oil.]

Defn: Having the nature or qualities of oil; oily; unctuous.

OLEAGINOUSNESS
O`le*ag`i*nous*ness, n.

Defn: Oiliness. Boyle.

OLEAMEN
O`le*a"men, n. Etym: [L.] (Med.)

Defn: A soft ointment prepared from oil. Dunglison.

OLEANDER O`le*an"der, n. Etym: [F. oléandre (cf. It. oleandro, LL. lorandrum), prob. corrupted, under the influence of laurus laurel, fr. L. rhododendron, Gr. (Bot.)

Defn: A beautiful evergreen shrub of the Dogbane family, having
clusters of fragrant red or white flowers. It is native of the East
Indies, but the red variety has become common in the south of Europe.
Called also rosebay, rose laurel, and South-sea rose.

Note: Every part of the plant is dangerously poisonous, and death has occured from using its wood for skewers in cooking meat.

OLEANDRINE
O`le*an"drine, n. (Chem.)

Defn: One of several alkaloids found in the leaves of the oleander.

OLEASTER O`le*as"ter, n. Etym: [L., fr. olea olive tree. See Olive, Oil.] (Bot.) (a) The wild olive tree (Olea Europea, var. sylvestris). (b) Any species of the genus Elæagus. See Eleagnus. The small silvery berries of the common species (Elæagnus hortensis) are called Trebizond dates, and are made into cakes by the Arabs.

OLEATE
O"le*ate, n. Etym: [Cf.F. oléate.] (Chem.)

Defn: A salt of oleic acid. Some oleates, as the oleate of mercury, are used in medicine by way of inunction.

OLECRANAL
O*lec"ra*nal, a. (Anat.)

Defn: Of or pertaining to the olecranon.

OLECRANON
O*lec"ra*non, n. Etym: [NL., fr.Gr. (Anat.)

Defn: The large process at the proximal end of the ulna which projects behind the articulation with the humerus and forms the bony prominence of the elbow.

OLEFIANT O*le"fi*ant, a. Etym: [F. oléfiant, fr.L. oleum oil + -ficare (in comp.). Cf. -Fy.] (Chem.)

Defn: Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene. [Archaic]

OLEFINE
O"le*fine, n. Etym: [From Olefiant.] (Chem.)

Defn: Olefiant gas, or ethylene; hence, by extension, any one of the series of unsaturated hydrocarbons of which ethylene is a type. See Ethylene.

OLEIC
O"le*ic, a. Etym: [L. oleum oil: cf. F. oléique.] (Physiol.Chem.)

Defn: Pertaining to, derived from, or contained in, oil; as, oleic acid, an acid of the acrylic acid series found combined with glyceryl in the form of olein in certain animal and vegetable fats and oils, such as sperm oil, olive oil, etc. At low temperatures the acid is crystalline, but melts to an oily liquid above 14

OLEIFEROUS
O`le*if`er*ous, a. Etym: [L. oleum oil + -ferous: cf.F. oléifére.]

Defn: Producing oil; as, oleiferous seeds.

OLEIN
O"le*in, n. Etym: [L. oleum oil: cf. F. oléine.] (Physiol. Chem.)

Defn: A fat, liquid at ordinary temperatures, but solidifying at temperatures below 0° C., found abundantly in both the animal and vegetable kingdoms (see Palmitin). It dissolves solid fats, especially at 30-40° C. Chemically, olein is a glyceride of oleic acid; and, as three molecules of the acid are united to one molecule of glyceryl to form the fat, it is technically known as triolein. It is also called elain.

OLENT
O"lent, a. Etym: [L. olens, p.pr. of olere to smell.]

Defn: Scented. [R.] R. Browning.

OLEOGRAPH
O`le*o*graph, n. Etym: [L. oleum oil + -graph.]

1. (Chem.)

Defn: The form or figure assumed by a drop of oil when placed upon water or some other liquid with which it does not mix.

2. (Painting)

Defn: A picture produced in oils by a process analogous to that of lithographic printing.

OLEOGRAPHY
O`le*og"ra*phy, n.

1. Art or process of producing the pictures known as oleographs.

2. A process of identifying oils by their oleographs.

OLEOMARGARINE
O`le*o*mar"ga*rine, n. Etym: [L. oleum oil + E. margarine, margarin.]
[Written also oleomargarin.]

1. A liquid oil made from animal fats (esp. beef fat) by separating the greater portion of the solid fat or stearin, by crystallization. It is mainly a mixture of olein and palmitin with some little stearin.

2. An artificial butter made by churning this oil with more or less milk.

Note: Oleomargarine was wrongly so named, as it contains no margarin proper, but olein, palmitin, and stearin, a mixture of palmitin and stearin having formerly been called margarin by mistake.

OLEOMETER
O`le*om`e*ter, n. Etym: [L. oleum oil + -meter.] (Chem.)

Defn: An instrument for ascertaining the weight and purity of oil; an elaiometer.

OLEONE
O"le*one, n. Etym: [L. oleum + -one, 1.] (Chem.)

Defn: An oily liquid, obtained by distillation of calcium oleate, and probably consisting of the ketone of oleic acid.

OLEO OIL
O`le*o oil.

Defn: An oil expressed from certain animal fats (esp. beef suet), the greater portion of the solid fat, or stearin, being left behind. It is mixture of olein, palmitin, and a little stearin.

OLEOPTENE
O`le*op"tene, n. Etym: [L. oleum oil + Cr. (Chem.)

Defn: See Eleoptene. [R.]

OLEORESIN
O`le*o*res"in, n. Etym: [L.oleum oil + E. resin.]

1. (Chem.)

Defn: A natural mixture of a terebinthinate oil and a resin.

2. (Med.)

Defn: A liquid or semiliquid preparation extracted (as from capsicum, cubebs, or ginger) by means of ether, and consisting of fixed or volatile oil holding resin in solution. — O`le*o*res"in*ous, a.

OLEOSE; OLEOUS
O"le*ose`, O"le*ous, a. Etym: [L. oleosus, fr. oleum oil.]

Defn: Oily. [R.] Ray. Floyer.

OLEOSITY
O`le*os"i*ty, n.

Defn: The state or quality of being oily or fat; fatness. [R.] B.
Jonson.

OLERACEOUS Ol`er*a"ceous, a. Etym: [L. oleraceus, from olus, oleris, garden or pot herbs, vegetables.]

Defn: Pertaining to pot herbs; of the nature or having the qualities of herbs for cookery; esculent. Sir T. Browne.

OLF
Olf, n. Etym: [Etymol. uncertain.] (Zoöl.)

Defn: The European bullfinch. [Prov.Eng.]

OLFACTION
Ol*fac"tion, n. Etym: [See Olfactory.] (Physiol.)

Defn: The sense by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.

OLFACTIVE
Ol*fac"tive, a.

Defn: See Olfactory, a.

OLFACTOR
Ol*fac"tor, n.

Defn: A smelling organ; a nose. [R.]

OLFACTORY Ol*fac"to*ry, a. Etym: [L. olfactus, p.p. of olfacere to smell; olere to have a smell + facere to make. See Odor, and Fact.] (Physiol.)

Defn: Of, pertaining to, or connected with, the sense of smell; as, the olfactory nerves; the olfactory cells. Olfactory organ (Anat.), an organ for smelling. In vertebrates the olfactory organs are more or less complicated sacs, situated in the front part of the head and lined with epithelium innervated by the olfactory (or first cranial) nerves, and sensitive to odoriferous particles conveyed to it in the air or in water.

OLFACTORY
Ol*fac"to*ry, n.; pl. Olfactories (.

Defn: An olfactory organ; also, the sense of smell; — usually in the plural.

OLIBAN
Ol"i*ban, n. (Chem.)

Defn: See Olibanum.

OLIBANUM
O*lib"a*num, n. Etym: [LL., fr. Ar. al-luban frankincense; cf.Gr.

Defn: The fragrant gum resin of various species of Boswellia;
Oriental frankincense.

OLIBENE
Ol"i*bene, n. (Chem.)

Defn: A colorless mobile liquid of a pleasant aromatic odor obtained by the distillation of olibanum, or frankincense, and regarded as a terpene; — called also conimene.

OLID; OLIDOUS
Ol"id, Ol"i*dous, a. Etym: [L. olidus, fr. olere to smell.]

Defn: Having a strong, disagreeable smell; fetid. [Obs.] Boyle. Sir
T. Browne.

OLIFANT
Ol"i*fant, n. Etym: [OF.]

1. An elephant. [Obs.]

2. An ancient horn, made of ivory.

OLIGANDROUS
Ol`i*gan"drous, a. Etym: [Oligo- + Gr. (Bot.)

Defn: Having few stamens.

OLIGANTHOUS
Ol`i*gan"thous, a. Etym: [Oligo- + Gr. (Bot.)

Defn: Having few flowers.

OLIGARCH
Ol`i*garch, n.

Defn: A member of an oligarchy; one of the rulers in an oligarchical government.

OLIGARCHAL
Ol`i*gar"chal, a.

Defn: Oligarchic. Glover.

OLIGARCHIC; OLIGARCHICAL
Ol`i*gar"chic, Ol`i*gar"chic*al, a. Etym: [Gr. oligarchique. See
Oligarchy.]

Defn: Of or pertaining to oligarchy, or government by a few.
"Oligarchical exiles." Jowett (Thucyd. ).

OLIGARCHIST
Ol"i*gar`chist, n.

Defn: An advocate or supporter of oligarchy.

OLIGARCHY
Ol"i*gar"chy, n.; pl. Oligarchies. Etym: [Gr. oligarchie.]

Defn: A form of government in which the supreme power is placed in
the hands of a few persons; also, those who form the ruling few.
All oligarchies, wherein a few men domineer, do what they list.
Burton.

OLIGIST
Ol"i*gist, n. Etym: [See Oligist, a.] (Min.)

Defn: Hematite or specular iron ore; — prob. so called in allusion to its feeble magnetism, as compared with magnetite.

OLIGIST; OLIGISTIC
Ol"i*gist, Ol`i*gis"tic, a. Etym: [Gr. oligiste.] (Min.)

Defn: Of or pertaining to hematite.

OLIGO-
Ol"i*go-.

Defn: A combining form from Gr. few, little, small.

OLIGOCENE
Ol"i*go*cene, a. Etym: [Oligo- + Gr. (Geol.)

Defn: Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods. — n.

Defn: The Oligocene period. See the Chart of Geology.

OLIGOCHAETA
Ol`i*go*chæ"ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: An order of Annelida which includes the earthworms and related species.

OLIGOCHETE
Ol"i*go*chete, a. (Zoöl.)

Defn: Of or pertaining to the Oligochæta.

OLIGOCLASE
Ol"i*go*clase, n. Etym: [Oligo- + Gr. (Min.)

Defn: A triclinic soda-lime feldspar. See Feldspar.

OLIGOMEROUS
Ol`i*gom"er*ous, a. Etym: [Oligo- + Gr. (Bot.)

Defn: Having few members in each set of organs; as, an oligomerous flower.

OLIGOMYOLD
Ol`i*go"my*old, a. Etym: [Oligo- + Gr. -oid.] (Anat.)

Defn: Having few or imperfect syringeal muscles; — said of some passerine birds (Oligomyodi).

OLIGOPETALOUS
Ol`i*go*pet"al*ous, a. Etym: [Oligo- + petal.] (Bot.)

Defn: Having few petals.

OLIGOSEPALOUS
Ol`i*go*sep"al*ous, a. Etym: [Oligo- + sepal.] (Bot.)

Defn: Having few sepals.

OLIGOSIDERITE
Ol`i*go*sid"er*ite, n. Etym: [Oligo- + siderite.] (Min.)

Defn: A meteorite characterized by the presence of but a small amount of metallic iron.

OLIGOSPERMOUS
Ol`i*go*sper"mous, a. Etym: [Oligo- + Gr. (Bot.)

Defn: Having few seeds.

OLIGOTOKOUS
Ol`i*got"o*kous, a. Etym: [Oligo- + Gr. (Zoöl.)

Defn: Producing few young.

OLIO O"li*o, n. Etym: [Sp. olla a round earthen pot, a dish of boiled or stewed meat, fr. L. olla a pot, dish. Cf. Olla, Olla-podrida.]

1. A dish of stewed meat of different kinds. [Obs.] Besides a good olio, the dishes were trifling. Evelyn.

2. A mixture; a medley. Dryden.

3. (Mus.)

Defn: A collection of miscellaneous pieces.

OLITORY Ol"i*to*ry, a. Etym: [L. olitorius belonging to a kitchen gardener, or to vegetables, fr. olitor a kitchen gardener, fr. olus, oleris, vegetables.]

Defn: Of or pertaining to, or produced in, a kitchen garden; used for kitchen purposes; as, olitory seeds. At convenient distance towards the olitory garden. Evelyn.

OLIVA
O*li"va, n. Etym: [L. an olive.] (Zoöl.)

Defn: A genus of polished marine gastropod shells, chiefly tropical, and often beautifully colored.

OLIVACEOUS
Ol`i*va"ceous, a. Etym: [L. oliva olive.]

Defn: Resembling the olive; of the color of the olive; olive-green.

OLIVARY Ol"i*va*ry, a. Etym: [L. olivarius belonging to olives, fr. oliva an olive: cf. F. olivaire.] (Anat.)

Defn: Like an olive. Olivary body (Anat.), an oval prominence on each side of the medulla oblongata; — called also olive.

OLIVASTER
Ol`i*vas"ter, a. Etym: [L. oliva olive: cf.F. olivâtre.]

Defn: Of the color of the olive; tawny. Sir T. Herbert.

OLIVE
Ol"ive, n. Etym: [F., fr. L. oliva, akin to Gr. Oil.]

1. (Bot.) (a) A tree (Olea Europæa) with small oblong or elliptical leaves, axillary clusters of flowers, and oval, one-seeded drupes. The tree has been cultivated for its fruit for thousands of years, and its branches are the emblems of peace. The wood is yellowish brown and beautifully variegated. (b) The fruit of the olive. It has been much improved by cultivation, and is used for making pickles. Olive oil is pressed from its flesh.

2. (Zoöl.) (a) Any shell of the genus Oliva and allied genera; — so called from the form. See Oliva. (b) The oyster catcher. [Prov.Eng.]

3. (a) The color of the olive, a peculiar dark brownish, yellowish, or tawny green. (b) One of the tertiary colors, composed of violet and green mixed in equal strength and proportion.

4. (Anat.)

Defn: An olivary body. See under Olivary.

5. (Cookery)

Defn: A small slice of meat seasoned, rolled up, and cooked; as, olives of beef or veal.

Note: Olive is sometimes used adjectively and in the formation of self-explaining compounds; as, olive brown, olive green, olive- colored, olive-skinned, olive crown, olive garden, olive tree, olive yard, etc. Bohemian olive (Bot.), a species of Elæagnus (E. angustifolia), the flowers of which are sometimes used in Southern Europe as a remedy for fevers. — Olive branch. (a) A branch of the olive tree, considered an emblem of peace. (b) Fig.: A child. — Olive brown, brown with a tinge of green. — Olive green, a dark brownish green, like the color of the olive. — Olive oil, an oil expressed from the ripe fruit of the olive, and much used as a salad oil, also in medicine and the arts. — Olive ore (Min.), olivenite. — Wild olive (Bot.), a name given to the oleaster or wild stock of the olive; also variously to several trees more or less resembling the olive.

OLIVE
Ol"ive, a.

Defn: Approaching the color of the olive; of a peculiar dark brownish, yellowish, or tawny green.

OLIVED
Ol"ived, a.

Defn: Decorated or furnished with olive trees. [R.] T. Warton.

OLIVENITE
O*liv"en*ite, n. (Min.)

Defn: An olive-green mineral, a hydrous arseniate of copper; olive ore.

OLIVER
Ol"i*ver, n.

1. Etym: [OF. oliviere.]

Defn: An olive grove. [Obs.] Chaucer.

2. Etym: [F. olivier.]

Defn: An olive tree. [Obs.] Chaucer.

OLIVER
Ol"i*ver, n.

Defn: A small tilt hammer, worked by the foot.

OLIVERIAN
Ol`i*ve"ri*an, n. (Eng. Hist.)

Defn: An adherent of Oliver Cromwell. Macaulay.

OLIVEWOOD Ol`ive*wood", n. (Bot.) (a) The wood of the olive. (b) An Australian name given to the hard white wood of certain trees of the genus Elæodendron, and also to the trees themselves.

OLIVIL
Ol`i*vil, n. Etym: [Cf. F. olivile.] (Chem.)

Defn: A white crystalline substance, obtained from an exudation from the olive, and having a bitter-sweet taste and acid proporties. [Written also olivile.] Gregory.

OLIVIN
Ol"i*vin, n. (Chem.)

Defn: A complex bitter gum, found on the leaves of the olive tree; — called also olivite.

OLIVINE
Ol"i*vine, n. Etym: [Cf. F. olivine.] (Min.)

Defn: A common name of the yellowish green mineral chrysolite, esp. the variety found in eruptive rocks.

OLIVITE
Ol"i*vite, n. (Chem.)

Defn: See Olivin.

OLLA
Ol"la, n. Etym: [See Olio.]

1. A pot or jar having a wide mouth; a cinerary urn, especially one of baked clay.

2. A dish of stewed meat; an olio; an olla-podrida.

OLLA-PODRIDA
Ol`la-po*dri"da, n. Etym: [Sp., lit., a rotten pot. See Olio.]

1. A favorite Spanish dish, consisting of a mixture of several kinds of meat chopped fine, and stewed with vegetables.

2. Any incongruous mixture or miscellaneous collection; an olio. B. Jonson.

OLOGY
Ol"o*gy, n. Etym: [See -logy.]

Defn: A colloquial or humorous name for any science or branch of
knowledge.
He had a smattering of mechanics, of physiology, geology, mineralogy,
and all other ologies whatsoever. De Quincey.

OLPE
Ol"pe, n. Etym: [NL., fr. Gr.

Defn: Originally, a leather flask or vessel for oils or liquids; afterward, an earthenware vase or pitcher without a spout.

OLUSATRUM O*lu"sa*trum, n. Etym: [L. holusatrum, olusatrum; olus garden herb + ater black.] (Bot.)

Defn: An umbelliferous plant, the common Alexanders of Western Europe
(Smyrnium Olusatrum).

OLYMPIAD
O*lym"pi*ad, n. Etym: [L. olympias, -adis, Gr. olympiade.] (Greek
Antig.)

Defn: A period of four years, by which the ancient Greeks reckoned time, being the interval from one celebration of the Olympic games to another, beginning with the victory of Coroebus in the foot race, which took place in the year 776 b.c.; as, the era of the olympiads.

OLYMPIAN; OLYMPIC O*lym"pi*an, O*lym"pic, a. Etym: [L. Olympius, Olympicus, Gr. olympique. See Olympiad.]

Defn: Of or pertaining to Olympus, a mountain of Thessaly, fabled as the seat of the gods, or to Olympia, a small plain in Elis. Olympic games, or Olympics (Greek Antiq.), the greatest of the national festivals of the ancient Greeks, consisting of athletic games and races, dedicated to Olympian Zeus, celebrated once in four years at Olympia, and continuing five days.

OLYMPIANISM
O*lym"pi*an*ism, n.

Defn: Worship of the Olympian gods, esp. as a dominant cult or religion.

OLYMPIC GAMES; OLYMPIAN GAMES
O*lym"pic, or O*lym"pi*an, games .

Defn: A modified revival of the ancient Olympian games, consisting of international athletic games, races, etc., now held once in four years, the first having been at Athens in 1896.

OLYMPIONIC
O*lym`pi*on"ic, n. Etym: [Gr.

Defn: An ode in honor of a victor in the Olympic games. [R.] Johnson.

OM
Om, interj. & n. [Also Aum, Um.] [Skr. om.]

Defn: A mystic syllable or ejaculation used by Hindus and Buddhists in religious rites, — orig. among the Hindus an exclamation of assent, like Amen, then an invocation, and later a symbol of the trinity formed by Vishnu, Siva, and Brahma. — Om mani padme hun, a sacred formula of buddhism (esp. of the Lamaists) translated "O, the Jewel in the Lotus, Amen," and referring to Amitabha, who is commonly represented as standing or sitting within a lotus.

-OMA -o"ma. Etym: [Gr.

Defn: A suffix used in medical terms to denote a morbid condition of some part, usually some kind of tumor; as in fibroma, glaucoma.

OMAGRA
Om"a*gra, n. Etym: [NL., fr. Gr. (Med.)

Defn: Gout in the shoulder.

OMAHAS
O"ma*has", n. pl.; sing. Omaha (. (Ethnol.)

Defn: A tribe of Indians who inhabited the south side of the Missouri
River. They are now partly civilized and occupy a reservation in
Nebraska.

OMANDER WOOD
O*man"der wood`. Etym: [Etymol. uncertain.] (Bot.)

Defn: The wood of Diospyros ebenaster, a kind of ebony found in
Ceylon.

OMASUM
O*ma"sum, n. Etym: [L.] (Anat.)

Defn: The third division of the stomach of ruminants. See Manyplies, and Illust. under Ruminant.

OMBER; OMBRE
Om"ber, Om"bre, n. Etym: [F. hombre, fr. Sp. hombre, lit., a man, fr.
L. homo. See Human.]

Defn: A game at cards, borrowed from the Spaniards, and usually played by three persons. Pope. When ombre calls, his hand and heart are free, And, joined to two, he fails not to make three. Young.

OMBRE
Om"bre, n. Etym: [F., of uncertain origin.] (Zoöl.)

Defn: A large Mediterranean food fish (Umbrina cirrhosa): — called also umbra, and umbrine.

OMBROMETER
Om*brom"e*ter, n. Etym: [Gr. -meter: cf. F. ombrométre.] (Meteorol.)

Defn: An instrument for measuring the rain that falls; a rain gauge.

OMEGA
O*me"ga, n. Etym: [NL., fr. Gr. Mickle.]

1. The last letter of the Greek alphabet. See Alpha.

2. The last; the end; hence, death.
"Omega! thou art Lord," they said. Tennyson.
Alpha and Omega, the beginning and the ending; hence, the chief, the
whole. Rev. i. 8.
The alpha and omega of science. Sir J. Herschel.

OMEGOID
O*me"goid, a. Etym: [Omega + -oid.]

Defn: Having the form of the Greek capital letter Omega (

OMELET Om"e*let, n. Etym: [F. omelette, OF. amelette, alumete, alumelle, perh. fr. L. lamella. Cf. Lamella.]

Defn: Eggs beaten up with a little flour, etc., and cooked in a frying pan; as, a plain omelet.

OMEN
O"men, n. Etym: [L. omen, the original form being osmen, according to
Varro.]

Defn: An occurrence supposed to portend, or show the character of, some future event; any indication or action regarded as a foreshowing; a foreboding; a presage; an augury. Bid go with evil omen, and the brand Of infamy upon my name. Milton.

OMEN
O"men, v. t. [imp. & p. p. Omened; p. pr. & vb. n. Omening.]

Defn: To divine or to foreshow by signs or portents; to have omens or premonitions regarding; to predict; to augur; as, to omen ill of an enterprise. The yet unknown verdict, of which, however, all omened the tragical contents. Sir W. Scott.

OMENED
O"mened, a.

Defn: Attended by, or containing, an omen or omens; as, happy-omened day.

OMENTAL
O*men"tal, a. (Anat.)

Defn: Of or pertaining to an omentum or the omenta.

OMENTUM
O*men"tum, n.; pl. Omenta. Etym: [L.] (Anat.)

Defn: A free fold of the peritoneum, or one serving to connect viscera, support blood vessels, etc.; an epiploön.

Note: The great, or gastrocolic, omentum forms, in most mammals, a great sac, which is attached to the stomach and transverse colon, is loaded with fat, and covers more or less of the intestines; the caul. The lesser, or gastrohepatic, omentum connects the stomach and liver and contains the hepatic vessels. The gastrosplenic omentum, or ligament, connects the stomach and spleen.

OMER
O"mer, n. Etym: [Cf. Homer.]

Defn: A Hebrew measure, the tenth of an ephah. See Ephah. Ex. xvi. 36.

OMICRON
O*mi"cron, n. [Written also omikron.] [NL., fr. Gr. O o. See Micro-.]

Defn: Lit., the little, or short, O, o; the fifteenth letter of the
Greek alphabet.

OMILETICAL
Om`i*let"ic*al, a.

Defn: Homiletical. [Obs.]

OMINATE Om"i*nate, v. t. & i. Etym: [L. ominatus, p.p. of ominari to presage, fr. omen.]

Defn: To presage; to foreshow; to foretoken. [Obs.] Dr. H. More.

OMINATION
Om`i*na"tion, n. Etym: [L. ominatio.]

Defn: The act of ominating; presaging. [Obs.] Fuller.

OMINOUS
Om"i*nous, a. Etym: [L. ominosus, fr. omen. See Omen.]

Defn: Of or pertaining to an omen or to omens; being or exhibiting an omen; significant; portentous; — formerly used both in a favorable and unfavorable sense; now chiefly in the latter; foreboding or foreshowing evil; inauspicious; as, an ominous dread. He had a good ominous name to have made a peace. Bacon. In the heathen worship of God, a sacrifice without a heart was accounted ominous. South. — Om"i*nous*ly, adv. — Om"i*nous*ness, n.

OMISSIBLE
O*mis"si*ble, a.

Defn: Capable of being omitted; that may be omitted.

OMISSION
O*mis"sion, n. Etym: [L. omissio: cf. F. omission. See Omit.]

1. The act of omitting; neglect or failure to do something required by propriety or duty. The most natural division of all offenses is into those of omission and those of commission. Addison.

2. That which is omitted or is left undone.

OMISSIVE
O*mis"sive, a. Etym: [See Omit.]

Defn: Leaving out; omitting. Bp. Hall.
— O*mis"sive*ly, adv.

OMIT
O*mit", v. t. [imp. & p. p. Omitted; p. pr. & vb. n. Omitting.] Etym:
[L. omittere, omissum; ob (see Ob- + mittere to cause to go, let go,
send. See Mission.]

1. To let go; to leave unmentioned; not to insert or name; to drop. These personal comparisons I omit. Bacon.

2. To pass by; to forbear or fail to perform or to make use of; to leave undone; to neglect. Her father omitted nothing in her education that might make her the most accomplished woman of her age. Addison.

OMITTANCE
O*mit"tance, n.

Defn: The act of omitting, or the state of being omitted; forbearance; neglect. Shak.

OMITTER
O*mit"ter, n.

Defn: One who omits. Fuller.

OMMATEAL
Om`ma*te"al, a. (Zoöl.)

Defn: Of or pertaining to an ommateum.

OMMATEUM
Om`ma*te"um, n.; pl. Ommatea. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A compound eye, as of insects and crustaceans.

OMMATIDIUM
Om`ma*tid"i*um, n.; pl. Ommatidia. Etym: [NL., dim. of Gr. (Zoöl.)

Defn: One of the single eyes forming the compound eyes of crustaceans, insects, and other invertebrates.

OMNI-
Om"ni-. Etym: [L. omnis all.]

Defn: A combining form denoting all, every, everywhere; as in omnipotent, all-powerful; omnipresent.

OMNIBUS
Om"ni*bus, n. Etym: [L., for all, dat. pl. from omnis all. Cf. Bus.]

1. A long four-wheeled carriage, having seats for many people; especially, one with seats running lengthwise, used in conveying passengers short distances.

2. (Glass Making)

Defn: A sheet-iron cover for articles in a leer or annealing arch, to protect them from drafts. Omnibus bill, a legislative bill which provides for a number of miscellaneous enactments or appropriations. [Parliamentary Cant, U.S.] — Omnibus box, a large box in a theater, on a level with the stage and having communication with it. [Eng.] Thackeray.

OMNICORPOREAL
Om`ni*cor*po"re*al, a. Etym: [Omni- + corporeal.]

Defn: Comprehending or including all bodies; embracing all substance.
[R.] Cudworth.

OMNIETY
Om*ni"e*ty, n.

Defn: That which is all-pervading or all-comprehensive; hence, the
Deity. [R.]
Omniety formed nullity into an essence. Sir T. Browne.

OMNIFARIOUS
Om`ni*fa"ri*ous, a. Etym: [L. omnifarius; omnis all + -farius. Cf.
Bifarious.]

Defn: Of all varieties, forms, or kinds. "Omnifarious learning."
Coleridge.

OMNIFEROUS
Om*nif"er*ous, a. Etym: [L. omnifer; omnis all + ferre to bear.]

Defn: All-bearing; producing all kinds.

OMNIFIC
Om*nif"ic, a. Etym: [Omni- + L. -ficare (in comp.) to make.]

Defn: All-creating. "The omnific word." Milton.

OMNIFORM Om"ni*form, a. Etym: [L. omniformis; omnis all + forma form: cf. F. omniforme.]

Defn: Having every form or shape. Berkeley.

OMNIFORMITY
Om`ni*for"mi*ty, n.

Defn: The condition or quality of having every form. Dr. H. More.

OMNIFY
Om"ni*fy, v. t. Etym: [Omni- + -fy.]

Defn: To render universal; to enlarge. [R.] Omnify the disputed point into a transcendent, and you may defy the opponent to lay hold of it. Coleridge.

OMNIGENOUS
Om*nig"e*nous, a. Etym: [L. omniqenus; omnis all + genus kind.]

Defn: Consisting of all kinds. [R.]

OMNIGRAPH
Om"ni*graph, n. Etym: [Omni- + -graph.]

Defn: A pantograph. [R.]

OMNIPARIENT Om`ni*pa"ri*ent, a. Etym: [L. omniparens all-producing; omnis all + parere to bring forth.]

Defn: Producing or bringing forth all things; all-producing. [R.]

OMNIPARITY
Om`ni*par"i*ty, n. Etym: [Omni- + -parity.]

Defn: Equality in every part; general equality.

OMNIPAROUS
Om*nip"a*rous, a. Etym: [See Omniparient.]

Defn: Producing all things; omniparient.

OMNIPATIENT
Om`ni*pa"tient, a. Etym: [Omni- + patient.]

Defn: Capable of enduring all things. [R.] Carlyle.

OMNIPERCIPIENCE; OMNIPERCIPIENCY
Om`ni*per*cip"i*ence, Om`ni*per*cip"i*en*cy, n.

Defn: Perception of everything.

OMNIPERCIPIENT
Om`ni*per*cip"i*ent, a. Etym: [Omni- + percipient.]

Defn: Perceiving everything. Dr. H. More.

OMNIPOTENCE; OMNIPOTENCY Om*nip"o*tence, Om*nip"o*ten*cy, n. Etym: [L. omnipotentia: cf.F. omnipotence.]

1. The state of being omnipotent; almighty power; hence, one who is omnipotent; the Deity. Will Omnipotence neglect to save The suffering virtue of the wise and brave Pope.

2. Unlimited power of a particular kind; as, love's omnipotence. Denham.

OMNIPOTENT Om*nip"o*tent, a. Etym: [F., fr.L. omnipotens, -entis; omnis all + potens powerful, potent. See Potent.]

1. Able in every respect and for every work; unlimited in ability; all-powerful; almighty; as, the Being that can create worlds must be omnipotent. God's will and pleasure and his omnipotent power. Sir T. More.

2. Having unlimited power of a particular kind; as, omnipotent love. Shak. The Omnipotent, The Almighty; God. Milton.

OMNIPOTENTLY
Om*nip"o*tent*ly, adv.

Defn: In an omnipotent manner.

OMNIPRESENCE
Om`ni*pres"ence, n. Etym: [Cf. F. omniprésence.]

Defn: Presence in every place at the same time; unbounded or
universal presence; ubiquity.
His omnipresence fills Land, sea, and air, and every kind that lives.
Milton.

OMNIPRESENCY
Om`ni*pres"en*cy, n.

Defn: Omnipresence. [Obs.]

OMNIPRESENT
Om`ni*pres"ent, a. Etym: [Omni- + present: cf.F. omniprésent.]

Defn: Present in all places at the same time; ubiquitous; as, the omnipresent Jehovah. Prior.

OMNIPRESENTIAL
Om`ni*pre*sen"tial, a.

Defn: Implying universal presence. [R.] South.

OMNIPREVALENT
Om`ni*prev"a*lent, a. Etym: [Omni- + prevalent.]

Defn: Prevalent everywhere or in all things. Fuller.

OMNISCIENCE
Om*nis"cience, n. Etym: [Cf. F. omniscience.]

Defn: The quality or state of being omniscient; — an attribute peculiar to God. Dryden.

OMNISCIENCY
Om*nis"cien*cy, n.

Defn: Omniscience.

OMNISCIENT Om*nis"cient, a. Etym: [Omni- + L. sciens, -entis, p. pr. of scire to know: cf. F. omniscient. See Science.]

Defn: Having universal knowledge; knowing all things; infinitely
knowing or wise; as, the omniscient God.
— Om*nis"cient*ly, adv.
For what can scape the eye Of God all-seeing, or deceive his heart
Omniscient Milton.

OMNISCIOUS
Om*nis"cious, a. Etym: [L. omniscius. See Omniscient.]

Defn: All-knowing. [Obs.] Hakewill.

OMNISPECTIVE Om`ni*spec"tive, a. Etym: [Omni- + L. spectus, p.p. of specere, spicere, to view.]

Defn: Beholding everything; capable of seeing all things; all-seeing.
[R.] "Omnispective Power!" Boyse.

OMNIUM
Om"ni*um, n. Etym: [L., of all, gen. pl. of omnis all.] (Eng.Stock
Exchange)

Defn: The aggregate value of the different stocks in which a loan to government is now usually funded. M'Culloch.

OMNIUM-GATHERUM Om`ni*um-gath"er*um, n. Etym: [A macaronic compound of L. omnium, gen.pl. of omnis all, and E. gather.]

Defn: A miscellaneous collection of things or persons; a confused mixture; a medley. [Colloq. & Humorous] Selden.

OMNIVAGANT Om*niv"a*gant, a. Etym: [Omni + L. vagans, p.pr. of vagari to wander.]

Defn: Wandering anywhere and everywhere. [R.]

OMNIVORA
Om*niv"o*ra, n. pl. Etym: [NL. See Omnivorous.] (Zoöl.)

Defn: A group of ungulate mammals including the hog and the hippopotamus. The term is also sometimes applied to the bears, and to certain passerine birds.

OMNIVOROUS Om*niv"o*rous, a. Etym: [L. omnivorus; omnis all + vorate to eat greedily. See Voracious.]

Defn: All-devouring; eating everything indiscriminately; as,
omnivorous vanity; esp. (Zoöl.), eating both animal and vegetable
food.
— Om*niv"o*rous*ness, n.

OMO-
O"mo-. Etym: [Gr.

Defn: A combining form used in anatomy to indicate connection with, or relation to, the shoulder or the scapula.

OMOHYOID
O`mo*hy"oid, a. Etym: [Omo- + hyoid.] (Anat.)

Defn: Of or pertaining to the shoulder and the hyoid bone; as, the omohyoid muscle.

OMOPHAGIC
O"mo*phag"ic, a. Etym: [Gr.

Defn: Eating raw flesh; using uncooked meat as food; as, omophagic feasts, rites.

OMOPLATE
Om"o*plate, n. Etym: [F., from Gr. Omo-, and Plate.] (Anat.)

Defn: The shoulder blade, or scapula.

OMOSTEGITE
O*mos"te*gite, n. Etym: [Omo- + Gr. (Zoöl.)

Defn: The part of the carapace of a crustacean situated behind the cervical groove.

OMOSTERNAL
O`mo*ster"nal, a. (Anat.)

Defn: Of or pertaining to the omosternum.

OMOSTERNUM O`mo*ster"num, n. Etym: [Omo- + sternum.] (Anat.) (a) The anterior element of the sternum which projects forward from between the clavicles in many batrachians and is usually tipped with cartilage. (b) In many mammals, an interarticular cartilage, or bone, between the sternum and the clavicle.

OMPHACINE
Om"pha*cine, a. Etym: [Gr. omphacin.]

Defn: Of, pertaining to, or expressed from, unripe fruit; as, omphacine oil.

OMPHALIC
Om*phal"ic, a. Etym: [Gr. Navel.] (Anat.)

Defn: Of or pertaining to the umbilicus, or navel.

OMPHALO-
Om"pha*lo-. Etym: [Gr.

Defn: A combining form indicating connection with, or relation to, the umbilicus, or navel.

OMPHALOCELE
Om"pha*lo*cele`, n. Etym: [Gr. omphalocéle.] (Med.)

Defn: A hernia at the navel.

OMPHALODE
Om"pha*lode, n. Etym: [Omphalo- + Gr. (Bot.)

Defn: The central part of the hilum of a seed, through which the nutrient vessels pass into the rhaphe or the chalaza; — called also omphalodium.

OMPHALOMANCY
Om"pha*lo*man"cy, n. Etym: [Omphalo- + -mancy.]

Defn: Divination by means of a child's navel, to learn how many children the mother may have. Crabb.

OMPHALOMESARAIC
Om`pha*lo*mes`a*ra"ic, a. Etym: [Omphalo- + mesaraic.] (Anat.)

Defn: Omphalomesenteric.

OMPHALOMESENTERIC
Om`pha*lo*mes`en*ter"ic, a. Etym: [Omphalo- + mesenteric.] (Anat.)

Defn: Of or pertaining to the umbilicus and mesentery; omphalomesaraic; as, the omphalomesenteric arteries and veins of a fetus.

OMPHALOPSYCHITE
Om`pha*lop"sy*chite, n. Etym: [Omphalo- + Gr. omphalopsyque.]
(Eccl.Hist.)

Defn: A name of the Hesychasts, from their habit of gazing upon the navel.

OMPHALOPTER; OMPHALOPTIC
Om`pha*lop"ter, Om`pha*lop"tic, n. Etym: [Gr. omphaloptre.]

Defn: An optical glass that is convex on both sides. [Obs.] Hutton.

OMPHALOS
Om"pha*los, n. Etym: [L., fr. Gr. (Anat.)

Defn: The navel.

OMPHALOTOMY
Om`pha*lot"o*my, n. Etym: [Gr. omphalotomie.] (Surg.)

Defn: The operation of dividing the navel-string.

OMY
O"my, a.

Defn: Mellow, as land. [Prov.Eng.] Ray.

ON
On, prep. Etym: [OE. on, an, o, a, AS. on, an; akin to D. aan, OS. &
G. an, OHG. ana, Icel. a, Sw. ana, Russ. na, L. an-, in anhelare to
pant, Gr. ana. sq. root195. Cf. A-, 1, Ana-, Anon.]

Defn: The general signification of on is situation, motion, or condition with respect to contact or support beneath; as: —

1. At, or in contact with, the surface or upper part of a thing, and supported by it; placed or lying in contact with the surface; as, the book lies on the table, which stands on the floor of a house on an island. I stood on the bridge at midnight. Longfellow.

2. To or against the surface of; — used to indicate the motion of a thing as coming or falling to the surface of another; as, rain falls on the earth. Whosoever shall fall on this stone shall be broken. Matt. xxi. 44.

3. Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with; as, to play on a violin or piano. Hence, figuratively, to work on one's feelings; to make an impression on the mind.

4. At or near; adjacent to; — indicating situation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.

5. In addition to; besides; — indicating multiplication or succession in a series; as, heaps on heaps; mischief on mischief; loss on loss; thought on thought. Shak.

6. Indicating dependence or reliance; with confidence in; as, to depend on a person for assistance; to rely on; hence, indicating the ground or support of anything; as, he will promise on certain conditions; to bet on a horse.

7. At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).

8. At the time of, conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform. Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded.

9. Toward; for; — indicating the object of some passion; as, have pity or compassion on him.

10. At the peril of, or for the safety of. "Hence, on thy life." Dryden.

11. By virtue of; with the pledge of; — denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.

12. To the account of; — denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him. His blood be on us and on our children. Matt. xxvii. 25.

13. In reference or relation to; as, on our part expect punctuality; a satire on society.

14. Of. [Obs.] "Be not jealous on me." Shak. Or have we eaten on the insane root That takes the reason prisoner Shak.

Note: Instances of this usage are common in our older writers, and are sometimes now heard in illiterate speech.

15. Occupied with; in the performance of; as, only three officers are on duty; on a journey.

16. In the service of; connected with; of the number of; as, he is on a newspaper; on a committee.

Note: On and upon are in general interchangeable. In some
applications upon is more euphonious, and is therefore to be
preferred; but in most cases on is preferable. On a bowline. (Naut.)
Same as Closehauled.
— On a wind, or On the wind (Naut.), sailing closehauled.
— On a sudden. See under Sudden.
— On board, On draught, On fire, etc. See under Board, Draught,
Fire, etc.
— On it, On't, of it. [Obs. or Colloq.] Shak.
— On shore, on land; to the shore.
— On the road, On the way, On the wing, etc. See under Road, Way,
etc.
— On to, upon; on; to; — sometimes written as one word, onto, and
usually called a colloquialism; but it may be regarded in analogy
with into.
They have added the -en plural form on to an elder plural. Earle.
We see the strength of the new movement in the new class of
ecclesiastics whom it forced on to the stage. J. R. Green.

ON
On, adv. Etym: [See On, prep.]

1. Forward, in progression; onward; — usually with a verb of motion; as, move on; go on. "Time glides on." Macaulay. The path is smooth that leadeth on to danger. Shak.

2. Forward, in succession; as, from father to son, from the son to the grandson, and so on.

3. In continuance; without interruption or ceasing; as, sleep on, take your ease; say on; sing on.

4. Adhering; not off; as in the phrase, "He is neither on nor off," that is, he is not steady, he is irresolute.

5. Attached to the body, as clothing or ornament, or for use. "I have boots on." B. Gonson. He put on righteousness as a breastplate. Is. lix. 17.

6. In progress; proceeding; as, a game is on.

Note: On is sometimes used as an exclamation, or a command to move or proceed, some verb being understood; as, on, comrades; that is, go on, move on. On and on, continuously; for a long time together. "Toiling on and on and on." Longfellow.

ONAGER
On"a*ger, n.; pl. L. Onagri, E. Onagers. Etym: [L. onager, onagrus,
Gr.

1. (Rom.Antiq.)

Defn: A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery. Fairholt.

2. (Zoöl.)

Defn: A wild ass, especially the koulan.

ONAGGA
O*nag"ga, n. (Zoöl.)

Defn: The dauw.

ONAGRACEOUS; ONAGRARIEOUS On`a*gra"ceous, On`a*gra*ri"e*ous, a. Etym: [From NL. Onagra an old scientific name of the evening primrose (Enothera), fr. Gr. (Bot.)

Defn: Pertaining to, or resembling, a natural order of plants (Onagraceæ or Onagrarieæ), which includes the fuchsia, the willow- herb (Epilobium), and the evening primrose .

ONANISM
O"nan*ism, n. Etym: [Onan (Gen. xxxviii. 9): cf. F. onanisme.]

Defn: Self-pollution; masturbation.

ONAPPO
O*nap"po, n. (Zoöl.)

Defn: A nocturnal South American monkey (Callithrix discolor), noted for its agility; — called also ventriloquist monkey.

ONCE
Once, n. (Zoöl.)

Defn: The ounce.

ONCE Once, adv. Etym: [OE. ones, anes, an adverbial form fr. one, on, an, one. See One-, -Wards.]

1. By limitation to the number one; for one time; not twice nor any number of times more than one. Ye shall . . . go round about the city once. Josh. vi. 3. Trees that bear mast are fruitful but once in two years. Bacon.

2. At some one period of time; — used indefinitely. My soul had once some foolish fondness for thee. Addison. That court which we shall once govern. Bp. Hall.

3. At any one time; — often nearly equivalent to ever, if ever, or whenever; as, once kindled, it may not be quenched. Wilt thou not be made clean When shall it once be Jer. xiii. 27. To be once in doubt Is once to be resolved. Shak.

Note: Once is used as a noun when preceded by this or that; as, this once, that once. It is also sometimes used elliptically, like an adjective, for once-existing. "The once province of Britain." J. N. Pomeroy.. At once. (a) At the same point of time; immediately; without delay. "Stand not upon the order of your going, but go at once." Shak. "I . . . withdrew at once and altogether." Jeffrey. (b) At one and the same time; simultaneously; in one body; as, they all moved at once. — Once and again, once and once more; repeatedly. "A dove sent forth once and again, to spy." Milton.

ONCIDIUM
On*cid"i*um, n. Etym: [NL.] (Bot.)

Defn: A genus of tropical orchidaceous plants, the flower of one species of which (O. Papilio) resembles a butterfly.

ONCOGRAPH
On"co*graph, n. Etym: [Gr. -graph.] (Physiol.)

Defn: An instrument for registering the changes observable with an oncometer.

ONCOMETER
On*com"e*ter, n. Etym: [Gr. -meter.] (Physiol.)

Defn: An instrument for measuring the variations in size of the internal organs of the body, as the kidney, spleen, etc.

ONCOST
On"cost`, n. (Accounting)

Defn: In cost accounting, expenditure which is involved in the process of manufacture or the performance of work and which cannot be charged directly to any particular article manufactured or work done (as where different kinds of goods are produced), but must be allocated so that each kind of goods or work shall bear its proper share. [Brit.]

ONCOTOMY
On*cot"o*my, n. Etym: [Gr. oncotomie.] (Surg.)

Defn: The opening of an abscess, or the removal of a tumor, with a cutting instrument. [Written also onkotomy.] Dunglison.

ONDE Onde, n. Etym: [AS. anda malice, anger; akin to Icel. andi, önd, breath.]

Defn: Hatred; fury; envy. [Obs.]

ON DIT
On` dit". Etym: [F.]

Defn: They say, or it is said.
— n.

Defn: A flying report; rumor; as, it is a mere on dit.

ONDOGRAM
On"do*gram, n. [F. onde wave, L. unda + -gram.] (Elec.)

Defn: The record of an ondograph.

ONDOGRAPH
On"do*graph, n. [F. onde wave, L. unda + -graph.] (Elec.)

Defn: An instrument for autographically recording the wave forms of varying currents, esp. rapidly varying alternating currents.

ONDOMETER
On*dom"e*ter, n. [F. onde wave, L. unda + -mater.]

Defn: An electric wave meter.

ONDOYANT On`do`yant", a. [F., p.pr. of ondoyer to undulate, fr. onde wave, L. unda.] (Art)

Defn: Wavy; having the surface marked by waves or slightly depressed furrows; as, ondoyant glass.

-ONE -one. Etym: [From Gr. -w`nh, signifying, female descendant.] (Chem.)

Defn: A suffix indicating that the substance, in the name of which it appears, is a ketone; as, acetone.

-ONE -one.(Chem.)

Defn: A termination indicating that the hydrocarbon to the name of which it is affixed belongs to the fourth series of hydrocarbons, or the third series of unsaturated hydrocarbonsl as, nonone.

ONE One, a. Etym: [OE. one, on, an, AS. än; akin to D. een, OS. ën, OFries. ën, än, G. ein, Dan. een, Sw. en, Icel. einn, Goth. ains, W. un, Ir. & Gael. aon, L. unus, earlier oinos, oenos, Gr. ëka. The same word as the indefinite article a, an. sq. root 299. Cf. 2d A, 1st An, Alone, Anon, Any, None, Nonce, Only, Onion, Unit.]

1. Being a single unit, or entire being or thing, and no more; not multifold; single; individual. The dream of Pharaoh is one. Gen. xli. 25. O that we now had here But one ten thousand of those men in England. Shak.

2. Denoting a person or thing conceived or spoken of indefinitely; a certain. "I am the sister of one Claudio" [Shak.], that is, of a certain man named Claudio.

3. Pointing out a contrast, or denoting a particular thing or person different from some other specified; — used as a correlative adjective, with or without the. From the one side of heaven unto the other. Deut. iv. 32.

4. Closely bound together; undivided; united; constituting a whole. The church is therefore one, though the members may be many. Bp. Pearson

5. Single in kind; the same; a common. One plague was on you all, and on your lords. 1 Sam. vi. 4.

6. Single; inmarried. [Obs.] Men may counsel a woman to be one. Chaucer.

Note: One is often used in forming compound words, the meaning of which is obvious; as, one-armed, one-celled, one-eyed, one-handed, one-hearted, one-horned, one-idead, one-leaved, one-masted, one- ribbed, one-story, one-syllable, one-stringed, one-winged, etc. All one, of the same or equal nature, or consequence; as, he says that it is all one what course you take. Shak. — One day. (a) On a certain day, not definitely specified, referring to time past. One day when Phoebe fair, With all her band, was following the chase. Spenser. (b) Referring to future time: At some uncertain day or period; some day. Well, I will marry one day. Shak.

ONE
One, n.

1. A single unit; as, one is the base of all numbers.

2. A symbol representing a unit, as 1, or i.

3. A single person or thing. "The shining ones." Bunyan. "Hence, with your little ones." Shak. He will hate the one, and love the other. Matt. vi. 24. That we may sit, one on thy right hand, and the other on thy left hand, in thy glory. Mark x. 37. After one, after one fashion; alike. [Obs.] Chaucer. — At one, in agreement or concord. See At one, in the Vocab. — Ever in one, continually; perpetually; always. [Obs.] Chaucer. — In one, in union; in a single whole. — One and one, One by one, singly; one at a time; one after another."Raising one by one the suppliant crew." Dryden.

ONE
One, indef. pron.

Defn: Any person, indefinitely; a person or body; as, what one would have well done, one should do one's self. It was well worth one's while. Hawthorne. Against this sort of condemnation one must steel one's self as one best can. G. Eliot.

Note: One is often used with some, any, no, each, every, such, a,
many a, another, the other, etc. It is sometimes joined with another,
to denote a reciprocal relation.
When any one heareth the word. Matt. xiii. 19.
She knew every one who was any one in the land of Bohemia. Compton
Reade.
The Peloponnesians and the Athenians fought against one another.
Jowett (Thucyd. ).
The gentry received one another. Thackeray.

ONE
One, v. t.

Defn: To cause to become one; to gather into a single whole; to unite; to assimilite. [Obs.] The rich folk that embraced and oned all their heart to treasure of the world. Chaucer.

ONEBERRY
One"ber`ry, n. (Bot.)

Defn: The herb Paris. See Herb Paris, under Herb.

ONE-HAND
One"-hand`, a.

Defn: Employing one hand; as, the one-hand alphabet. See Dactylology.

ONE-HORSE
One"-horse`, a.

1. Drawn by one horse; having but a single horse; as, a one-horse carriage.

2. Second-rate; inferior; small. [Slang, U.S.]

ONEIDAS
O*nei"das, n. pl.; sing. Oneida (. (Ethnol.)

Defn: A tribe of Indians formerly inhabiting the region near Oneida
Lake in the State of New York, and forming part of the Five Nations.
Remnants of the tribe now live in New York, Canada, and Wisconsin.

ONEIROCRITIC O*nei`ro*crit`ic, n. Etym: [Cf.F. oneirocritique. See Oneirocritic, a.]

Defn: An interpreter of dreams. Bp. Warburton. Addison.

ONEIROCRITIC; ONEIROCRITICAL
O*nei`ro*crit`ic, O*nei`ro*crit`ic*al, a. Etym: [Gr.

Defn: Of or pertaining to the interpretation of dreams. Addison.

ONEIROCRITICISM; ONEIROCRITICS
O*nei`ro*crit`i*cism, O*nei`ro*crit`ics, n.

Defn: The art of interpreting dreams.

ONEIROMANCY
O*nei"ro*man`cy, n. Etym: [Gr. -mancy.]

Defn: Divination by means of dreams. De Quincey.

ONEIROSCOPIST
O`nei*ros"co*pist, n.

Defn: One who interprets dreams.

ONEIROSCOPY
O`nei*ros"co*py, n. Etym: [Gr. -scopy.]

Defn: The interpretation of dreams.

ONELINESS
One"li*ness, n.

Defn: The state of being one or single. [Obs.] Cudworth.

ONELY
One"ly, a.

Defn: See Only. [Obs.] Spenser.

ONEMENT
One"ment, n.

Defn: The state of being at one or reconciled. [Obs.] Bp. Hall.

ONENESS
One"ness, n.

Defn: The state of being one; singleness in number; individuality;
unity.
Our God is one, or rather very oneness. Hooker.

ONERARY On"er*a*ry, a. Etym: [L. onerarius, fr. onus, oneris, load, burden: cf.F. onéraire.]

Defn: Fitted for, or carrying, a burden. Johnson.

ONERATE
On"er*ate, v. t. [imp. & p. p. Onerated; p. pr. & vb. n. Onerating.]
Etym: [L. oneratus, p.p. pf onerare.]

Defn: To load; to burden. [Obs.] Becon.

ONERATION
On`er*a"tion, n.

Defn: The act of loading. [Obs.]

ONEROUS On"er*ous, a. Etym: [L. onerosus, fr. onus, oneris, a load, burden: cf.F. onéreux.]

Defn: Burdensome; oppressive. "Too onerous a solicitude." I. Taylor. Onerous cause (Scots Law), a good and legal consideration; — opposed to gratuitous.

ONEROUSLY
On"er*ous*ly, adv.

Defn: In an onerous manner.

ONES
Ones, adv.

Defn: Once. [Obs.] Chaucer.

ONESELF
One`self", pron.

Defn: A reflexive form of the indefinite pronoun one. Commonly writen
as two words, one's self.
One's self (or more properly oneself), is quite a modern form. In
Elizabethan English we find a man's self=one's self. Morris.

ONE-SIDED
One`-sid"ed, a.

1. Having one side only, or one side prominent; hence, limited to one side; partial; unjust; unfair; as, a one-sided view or statement. "Unguarded and one-sided language." T. Arnold.

2. (Bot.)

Defn: Growing on one side of a stem; as, one-sided flowers.
— One`-sid"ed-ly, adv.
— One`-sid"ed*ness, n.

ONETHE
On*ethe", adv.

Defn: Scarcely. See Unnethe. [Obs.] Chaucer.

ONGOING
On"go`ing, n.

Defn: The act of going forward; progress; (pl.) affairs; business;
current events.
The common ongoings of this our commonplace world, and everyday life.
Prof. Wilson.

ONGUENT
On"guent, n. Etym: [F.]

Defn: An unguent.

ON-HANGER
On"-hang`er, n.

Defn: A hanger-on.

ONION On"ion, n. Etym: [F. ognon, fr. L. unio oneness, unity, a single large pearl, an onion. See One, Union.] (Bot.)

Defn: A liliaceous plant of the genus Allium (A.cepa), having a strong-flavored bulb and long hollow leaves; also, its bulbous root, much used as an article of food. The name is often extended to other species of the genus. Onion fish (Zoöl.), the grenadier. — Onion fly (Zoöl.) a dipterous insect whose larva feeds upon the onion; especially, Anthomyia ceparum and Ortalis flexa. — Welsh onion. (Bot.) See Cibol. — Wild onion (Bot.), a name given to several species of the genus Allium.

ONIONSKIN
On"ion*skin`, n. [Onion + skin.]

Defn: A kind of thin translucent paper with a glossy finish.

ONIROCRITIC
O*ni`ro*crit`ic, a.

Defn: See Oneirocritic.

ONLINESS
On"li*ness, n.

Defn: The state of being alone. [Obs.]

ONLOFT
On*loft", adv.

Defn: Aloft; above ground. [Obs.]
She kept her father's life onloft. Chaucer.

ON-LOOKER
On"-look`er, n.

Defn: A looker-on.

ON-LOOKING
On"-look`ing, a.

Defn: Looking on or forward.

ONLY
On"ly, a. Etym: [OE. only, anly, onlich, AS. anlic, i.e., onelike.
See One, and Like, a.]

1. One alone; single; as, the only man present; his only occupation.

2. Alone in its class; by itself; not associated with others of the same class or kind; as, an only child.

3. Hence, figuratively: Alone, by reason of superiority; preëminent; chief. "Motley's the only wear." Shak.

ONLY
On"ly, adv. Etym: [See Only, a.]

1. In one manner or degree; for one purpose alone; simply; merely; barely. And to be loved himself, needs only to be known. Dryden.

2. So and no otherwise; no other than; exclusively; solely; wholly. "She being only wicked." Beau. & Fl. Every imagination . . . of his heart was only evil. Gen. vi. 5.

3. Singly; without more; as, only-begotten.

4. Above all others; particularly. [Obs.] His most only elected mistress. Marston.

ONLY
On"ly, conj.

Defn: Save or except (that); — an adversative used elliptically with or without that, and properly introducing a single fact or consideration. He might have seemed some secretary or clerk . . . only that his low, flat, unadorned cap . . . indicated that he belonged to the city. Sir W. Scott.

ONOCERIN On`o*ce"rin, n. Etym: [NL. Ononis, the generic name of the plant + L. cera wax.] (Chem.)

Defn: A white crystalline waxy substance extracted from the root of the leguminous plant Ononis spinosa.

ONOLOGY
O*nol"o*gy, n. Etym: [Gr. -logy.]

Defn: Foolish discourse. [R.]

ONOMANCY
On"o*man`cy, n. Etym: [Gr. -mancy. Cf. Nomancy.]

Defn: Divination by the letters of a name; nomancy. [R.] Camden.

ONOMANTIC; ONOMANTICAL
On`o*man"tic, On`o*man"tic*al, a.

Defn: Of or pertaining to onomancy. [R.]

ONOMASTIC
On`o*mas"tic, a. Etym: [Gr. (Law)

Defn: Applied to a signature when the body of the instrument is in another's handwriting. Burrill.

ONOMASTICON
On`o*mas"ti*con, n. Etym: [NL., fr. Gr. Onomastic.]

Defn: A collection of names and terms; a dictionary; specif., a collection of Greek names, with explanatory notes, made by Julius Pollux about A.D.180.

ONOMATECHNY
On"o*ma*tech`ny, n. Etym: [Gr.

Defn: Prognostication by the letters of a name.

ONOMATOLOGIST
On`o*ma*tol"o*gist, n.

Defn: One versed in the history of names. Southey.

ONOMATOLOGY
On`o*ma*tol"o*gy, n. Etym: [Gr. -logy.]

Defn: The science of names or of their classification.

ONOMATOPE
O*nom"a*tope, n. Etym: [See Onomatopoeia.]

Defn: An imitative word; an onomatopoetic word.

ONOMATOPOEIA
On`o*mat`o*poe"ia, n. Etym: [L., fr. Gr. (Philol.)

Defn: The formation of words in imitation of sounds; a figure of speech in which the sound of a word is imitative of the sound of the thing which the word represents; as, the buzz of bees; the hiss of a goose; the crackle of fire.

Note: It has been maintained by some philologist that all primary words, especially names, were formed by imitation of natural sounds.

ONOMATOPOEIC
On`o*mat`o*poe"ic, a.

Defn: Onomatopoetic. Whitney.

ONOMATOPOETIC
On`o*mat`o*po*et"ic, a.

Defn: Of or pertaining to onomatopoeia; characterized by onomatopoeia; imitative; as, an onomatopoetic writer or word. Earle.

ONOMATOPY
On`o*mat"o*py, n.

Defn: Onomatopoeia.

ONOMOMANCY
O*nom"o*man`cy, n.

Defn: See Onomancy.

ONONDAGAS
On`on*da"gas, n. pl.; sing. Onondaga (. (Ethnol.)

Defn: A tribe of Indians formerly inhabiting what is now a part of the State of New York. They were the central or head tribe of the Five Nations.

ONRUSH
On"rush`, n.

Defn: A rushing onward.

ONSET
On"set`, n. Etym: [On + set.]

1. A rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army. Milton. The onset and retire Of both your armies. Shak. Who on that day the word of onset gave. Wordsworth.

2. A setting about; a beginning. [Obs.] Shak. There is surely no greater wisdom than well to time the beginnings and onsets of things. Bacon.

3. Anything set on, or added, as an ornament or as a useful appendage. [Obs.] Johnson.

ONSET
On"set`, v. t.

1. To assault; to set upon. [Obs.]

2. To set about; to begin. [Obs.] Carew.

ONSLAUGHT
On"slaught`, n. Etym: [OE. on on + slaught, slaht, slaughter. See
Slaughter.]

1. An attack; an onset; esp., a furious or murderous attack or assault. By storm and onslaught to proceed. Hudibras.

2. A bloody fray or battle. [Scot.] Jamieson.

ONSTEAD
On"stead, n. Etym: [Possibly a corruption of homestead.]

Defn: A single farmhouse; a steading. [Prov.Eng. & Scot.] Grose.
Jamieson.

ONTO
On"to, prep. Etym: [On + to. Cf. Into.]

Defn: On the top of; upon; on. See On to, under On, prep.

ONTOGENESIS; ONTOGENY
On`to*gen"e*sis, On*tog"e*ny, n. Etym: [See Ontology, and Genesis.]
(Biol.)

Defn: The history of the individual development of an organism; the history of the evolution of the germ; the development of an individual organism, — in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny.

ONTOGENETIC
On`to*ge*net"ic, a. (Biol.)

Defn: Of or pertaining to ontogenesis; as, ontogenetic phenomena.
— On`to*ge*net"ic*al*ly, adv.

ONTOGENIC
On`to*gen"ic, a. (Biol.)

Defn: Ontogenetic.

ONTOLOGIC
On`to*log"ic, a.

Defn: Ontological.

ONTOLOGICAL
On`to*log"ic*al, a. Etym: [Cf. F. ontologique.]

Defn: Of or pertaining to ontology.

ONTOLOGICALLY
On`*to*log"ic*al*ly, adv.

Defn: In an ontological manner.

ONTOLOGIST
On*tol"o*gist, n. Etym: [Cf.F. ontologiste.]

Defn: One who is versed in or treats of ontology. Edin. Rev.

ONTOLOGY
On*tol"o*gy, n. Etym: [Gr. -logy: cf.F. ontologie.]

Defn: That department of the science of metaphysics which investigates and explains the nature and essential properties and relations of all beings, as such, or the principles and causes of being.

ONUS
O"nus, n. Etym: [L.]

Defn: A burden; an obligation. Onus probandi ( Etym: [L.], obligation to furnish evidence to prove a thing; the burden of proof.

ONWARD
On"ward, a.

1. Moving in a forward direction; tending toward a contemplated or desirable end; forward; as, an onward course, progress, etc.

2. Advanced in a forward direction or toward an end. Within a while, Philoxenus came to see how onward the fruits were of his friend's labor. Sir P. Sidney.

ONWARD
On"ward, adv.

Defn: Toward a point before or in front; forward; progressively; as,
to move onward.
Not one looks backward, onward still he goes. Pope.

ONWARDNESS
On"ward*ness, n.

Defn: Progress; advancement.

ONWARDS
On"wards, adv. Etym: [See -wards.]

Defn: Onward.

ONY
On"y, a.

Defn: Any. [Obs.] Chaucer.

ONYCHA On"y*cha, n. Etym: [NL., from L. onyx, -ychis, onyx, also, a kind of mussel, Gr. Onyx.]

1. An ingredient of the Mosaic incense, probably the operculum of some kind of strombus. Ex. xxx. 34.

2. The precious stone called onyx. [R.]

ONYCHIA O*nych"i*a, n. Etym: [NL. See Onyx.] (Med.) (a) A whitlow. (b) An affection of a finger or toe, attended with ulceration at the base of the nail, and terminating in the destruction of the nail.

ONYCHOMANCY
On"y*cho*man`cy, n. Etym: [Gr. -mancy: cf. F. onychomancie.]

Defn: Divination by the nails.

ONYCHOPHORA
On`y*choph"o*ra, n. pl. Etym: [NL., from Gr. (Zoöl.)

Defn: Malacopoda.

ONYX
O"nyx, n. Etym: [L., fr. Gr. Nail, and cf. Onycha.] (Min.)

Defn: Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next as a ground. Onyx marble, a banded variety of marble or calcium carbonate resembling onyx. It is obtained from Mexico.

OO
Oo, a.

Defn: One. [Obs.] Chaucer.

OO
O"ö, n. Etym: [Hawaiian.] (Zoöl.)

Defn: A beautiful bird (Moho nobilis) of the Hawaiian Islands. It yields the brilliant yellow feathers formerly used in making the royal robes. Called also yellow-tufted honeysucker.

OOECIUM
O*oe"ci*um, n.; pl. Ooecia. Etym: [NL., fr. Gr. (Zoöl.)

Defn: One of the special zooids, or cells, of Bryozoa, destined to receive and develop ova; an ovicell. See Bryozoa.

OOGENESIS; OOEGENESIS
O`ö*gen"e*sis, n. Etym: [Gr. genesis.] (Physiol.)

Defn: The development, or mode of origin, of the ova.

OOGONIUM; OOEGONIUM
O`ö*go"ni*um, n.; pl. L. Oögonia, E. Oögoniums. Etym: [NL., fr. Gr.
(Bot.)

Defn: A special cell in certain cryptogamous plants containing oöspheres, as in the rockweeds (Fucus), and the orders Vaucherieæ and Peronosporeæ.

OOIDAL
O*oi"dal, a. Etym: [Gr. (Biol.)

Defn: Shaped like an egg.

OOK
Ook, n.

Defn: Oak. [Obs.] "A branched ook." Chaucer.

OOLITE; OOELITE O"ö*lite, n. Etym: [Gr. -lite: cf.F. oölithe. So named from its resemblance to the roe of fish.] (Geol.)

Defn: A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology.

OOLITIC; OOELITIC
O`ö*lit"ic, a. Etym: [Cf.F. oölithique.]

Defn: Of or pertaining to oölite; composed of, or resembling, oölite.

OOLOGICAL; OOELOGICAL
O`ö*log"ic*al, a. (Zoöl.)

Defn: Of or pertaining to oölogy.

OOLOGIST; OOELOGIST
O*öl"o*gist, n.

Defn: One versed in oölogy.

OOLOGY; OOELOGY
O*öl"o*gy, n. Etym: [Gr. -logy.]

Defn: The science of eggs in relation to their coloring, size, shape, and number.

OOLONG
Oo"long, n. Etym: [Chinese, green dragon.]

Defn: A fragrant variety of black tea having somewhat the flavor of green tea. [Written also oulong.]

OOMIAC; OOMIAK
Oo"mi*ac, Oo"mi*ak, n.

Defn: A long, broad boat used by the Eskimos.

OON
Oon, a.

Defn: One. [Obs.] Chaucer.

OONES
Oones, adv.

Defn: Once. [Obs.] Chaucer.

OOP
Oop, v. t. Etym: [Etymol. uncertain.]

Defn: To bind with a thread or cord; to join; to unite. [Scot.]
Jamieson.

OOPACK; OOPAK
Oo"pack, Oo"pak, n. Etym: [So named from a district in China.]

Defn: A kind of black tea.

OOPHORE; OOEPHORE
O"ö*phore, n. Etym: [Gr. (Bot.)

Defn: An alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which bears antheridia and archegonia, and so has sexual fructification, as contrasted with the sporophore, which is nonsexual, but produces spores in countless number. In ferns the oöphore is a minute prothallus; in mosses it is the leafy plant.

OOPHORECTOMY; OOEPHORECTOMY
O`ö*pho*rec"to*my, n. Etym: [Gr. (Surg.)

Defn: Ovariotomy.

OOPHORIC; OOEPHORIC
O`ö*phor"ic, a. (Bot.)

Defn: Having the nature of, or belonging to, an oöphore.

OOPHORIDIUM; OOEPHORIDIUM O`ö*pho*rid"i*um, n.; pl. L. Oöphorida, E. Oöphoridiums. Etym: [NL., dim. fr. Gr. Oöphore.] (Bot.)

Defn: The macrosporangium or case for the larger kind of spores in heterosporous flowerless plants.

OOPHORITIS; OOEPHORITIS
O`ö*pho*ri"tis, n. Etym: [NL., fr. Gr. -itis.] (Med.)

Defn: Ovaritis.

OOPHYTE; OOEPHYTE
O"ö*phyte, n. Etym: [Gr. (Bot.)

Defn: Any plant of a proposed class or grand division (collectively termed oöphytes or Oöphyta), which have their sexual reproduction accomplished by motile antherozoids acting on oöspheres, either while included in their oögonia or after exclusion.

Note: This class was at first called Oösporeæ, and is made to include all algæ and fungi which have this kind of reproduction, however they may differ in all other respects, the contrasted classes of Thallophytes being Protophytes, Zygophytes, and Carpophytes. The whole system has its earnest advocates, but is rejected by many botanists. See Carpophyte.

OOPHYTIC; OOEPHYTIC
O`ö*phyt"ic, a. (Bot.)

Defn: Of or pertaining to an oöphyte.

OORDOBA
Cór"do*ba (kôr"do*vä), n. [Prob. fr. the Spanish explorer Francisco
Hernández de Córdoba.]

Defn: The monetary unit of Nicaragua, equivalent to the United States gold dollar.

OORIAL; OOERIAL
O*ö"ri*al, n. (Zoöl.)

Defn: A wild, bearded sheep inhabiting the Ladakh mountains. It is reddish brown, with a dark beard from the chin to the chest.

OOSPERM; OOESPERM
O"ö*sperm, n. Etym: [Gr. sperm.] (Biol.)

Defn: The ovum, after fusion with the spermatozoön in impregnation.
Balfour.

OOSPHERE; OOESPHERE
O"ö*sphere, n. Etym: [Gr. sphere.]

1. (Bot.)

Defn: An unfertilized, rounded mass of protoplasm, produced in an oögonium.

Note: After being fertilized by the access of antherozoids it becomes covered with a cell wall and develops into an oöspore, which may grow into a new plant like the parent.

2. (Bot.)

Defn: An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle. Goodale.

OOSPORANGIUM; OOESPORANGIUM
O`ö*spo*ran"gi*um, n.; pl. L. Oösporangia, E. Oösporangiums. Etym:
[NL., fr. Gr. (Bot.)

Defn: An oögonium; also, a case containing oval or rounded spores of some other kind than oöspores.

OOSPORE; OOESPORE O"ö*spore, n. Etym: [Gr. (Bot.) (a) A special kind of spore resulting from the fertilization of an oösphere by antherozoids. (b) A fertilized oösphere in the ovule of a flowering plant.

OOSPORIC; OOESPORIC
O`ö*spor"ic, a. (Bot.)

Defn: Of or pertaining to an oöspore.

OOSTEGITE; OOESTEGITE
O*ös"te*gite, n. Etym: [Gr. (Zoöl.)

Defn: One of the plates which in some Crustacea inclose a cavity wherein the eggs are hatched.

OOTHECA; OOETHECA
O`ö*the"ca, n.; pl. Oöthecæ. Etym: [NL., fr. Gr. (Zoöl.)

Defn: An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium.

OOTOOID; OOETOOID; OOTOCOID; OOETOCOID
O*öt"*ooid, O*öt"o*coid, n. Etym: [Gr. -oid.] (Zoöl.)

Defn: A half oviparous, or an oviparous, mammal; a marsupial or monotreme.

OOTYPE; OOETYPE
O"ö*type, n. Etym: [Gr. -type.] (Zoöl.)

Defn: The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell.

OOZE Ooze, n. Etym: [OE. wose, AS. wase dirt, mire, mud, akin to w juice, ooze, Icel. vas wetness, OHG. waso turf, sod, G. wasen.]

1. Soft mud or slime; earth so wet as to flow gently, or easily yield to pressure. "My son i' the ooze is bedded." Shak.

2. Soft flow; spring. Prior.

3. The liquor of a tan vat.

OOZE
Ooze, v. i. [imp. & p. p. Oozed; p.pr. & vb.n. Oozing.] Etym: [Prov.
Eng. weeze, wooz. See Ooze, n.]

1. To flow gently; to percolate, as a liquid through the pores of a substance or through small openings. The latent rill, scare oozing through the grass. Thomson.

2. Fig.: To leak (out) or escape slowly; as, the secret oozed out; his courage oozed out.

OOZE
Ooze, v. t.

Defn: To cause to ooze. Alex. Smith.

OOZE LEATHER
Ooze leather.

Defn: Leather made from sheep and calf skins by mechanically forcing ooze through them; esp., such leather with a soft, finely granulated finish (called sometimes velvet finish) put on the flesh side for special purposes. Ordinary ooze leather is used for shoe uppers, in bookbinding, etc. Hence Ooze calf, Ooze finish, etc.

OOZOA; OOEZOA
O`ö*zo"a, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: Same as Acrita.

OOZY
Ooz"y, a.

Defn: Miry; containing soft mud; resembling ooze; as, the oozy bed of a river. Pope.

OPACATE
O*pa"cate, v. t. Etym: [L. opacatus, p.p. of opacare.]

Defn: To darken; to cloud. [Obs.] Boyle.

OPACITY
O*pac"i*ty, n. Etym: [L. opacitas: cf.F. opacité.]

1. The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.

2. Obscurity; want of clearness. Bp. Hall.

OPACOUS
O*pa"cous, a. Etym: [L. opacus. See Opaque.]

Defn: Opaque. [R.] Milton.
— O*pa"cous*ness, n. [R.]

OPACULAR
O*pac"u*lar, a.

Defn: Opaque. [Obs.] Sterne.

OPAH
O"pah, n. (Zoöl.)

Defn: A large oceanic fish (Lampris quttatus), inhabiting the Atlantic Ocean. It is remarkable for its brilliant colors, which are red, green, and blue, with tints of purple and gold, covered with round silvery spots. Called also king of the herrings.

OPAKE
O*pake", a.

Defn: See Opaque.

OPAL O"pal, n. Etym: [L. opalus: cf. Gr. upala a rock, stone, precious stone: cf. F. opale.] (Min.)

Defn: A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.

Note: The precious opal presents a peculiar play of colors of delicate tints, and is highly esteemed as a gem. One kind, with a varied play of color in a reddish ground, is called the harlequin opal. The fire opal has colors like the red and yellow of flame. Common opal has a milky appearance. Menilite is a brown impure variety, occurring in concretions at Menilmontant, near Paris. Other varieties are cacholong, girasol, hyalite, and geyserite.

OPALESCE
O`pal*esce", v. i. [imp. & p. p. Opalesced; p. pr. & vb. n.
Opalescing.]

Defn: To give forth a play of colors, like the opal.

OPALESCENCE
O`pal*es"cence, n. (Min.)

Defn: A reflection of a milky or pearly light from the interior of a mineral, as in the moonstone; the state or quality of being opalescent.

OPALESCENT
O`pal*es"cent, a.

Defn: Reflecting a milky or pearly light from the interior; having an opaline play of colors.

OPALINE
O"pal*ine, a. Etym: [Cf. F. opalin.]

Defn: Of, pertaining to, or like, opal in appearance; having changeable colors like those of the opal.

OPALIZE
O"pal*ize, v. t. [imp. & p. p. Opalized; p. pr. & vb. n. Opalizing.]
Etym: [Cf. F. opaliser.]

Defn: To convert into opal, or a substance like opal. Lyell.

OPALOTYPE
O*pal"o*type, n. Etym: [Opal + -type.] (Photog.)

Defn: A picture taken on "milky" glass.

OPAQUE
O*paque", a. Etym: [F., fr. L. opacus. Cf. Opacous.]

1. Impervious to the rays of light; not transparent; as, an opaque substance.

2. Obscure; not clear; unintelligible. [Colloq.]

OPAQUE
O*paque", n.

Defn: That which is opaque; opacity. Young.

OPAQUENESS
O*paque"ness, n.

Defn: The state or quality of being impervious to light; opacity. Dr.
H. More.

OPE
Ope, a.

Defn: Open. [Poetic] Spenser.
On Sunday heaven's gate stands ope. Herbert.

OPE
Ope, v. t. & i.

Defn: To open. [Poetic] Wilt thou not ope thy heart to know What rainbows teach and sunsets show Emerson.

OPEIDOSCOPE
O*pei"do*scope, n. Etym: [Gr. -scope.] (Physics)

Defn: An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it. A. E. Dolbear.

OPELET
Ope"let, n. (Zoöl.)

Defn: A bright-colored European actinian (Anemonia, or Anthea, sulcata); — so called because it does not retract its tentacles.

OPEN O"pen, a. Etym: [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. öppen, Dan. aaben, and perh. to E. up. Cf. Up, and Ope.]

1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or preventing passage; not locked up or covered over; — applied to passageways; as, an open door, window, road, etc.; also, to inclosed structures or objects; as, open houses, boxes, baskets, bottles, etc.; also, to means of communication or approach by water or land; as, an open harbor or roadstead. Through the gate, Wide open and unquarded, Satan passed. Milton

Note: Also, figuratively, used of the ways of communication of the
mind, as by the senses; ready to hear, see, etc.; as, to keep one's
eyes and ears open.
His ears are open unto their cry. Ps. xxxiv. 15.

2. Free to be used, enjoyed, visited, or the like; not private; public; unrestricted in use; as, an open library, museum, court, or other assembly; liable to the approach, trespass, or attack of any one; unprotected; exposed. If Demetrius . . . have a matter against any man, the law is open and there are deputies. Acts xix. 33. The service that I truly did his life, Hath left me open to all injuries. Shak.

3. Free or cleared of obstruction to progress or to view; accessible; as, an open tract; the open sea.

4. Not drawn together, closed, or contracted; extended; expanded; as, an open hand; open arms; an open flower; an open prospect. Each, with open arms, embraced her chosen knight. Dryden.

5. Hence: (a) Without reserve or false pretense; sincere; characterized by sincerity; unfeigned; frank; also, generous; liberal; bounteous; — applied to personal appearance, or character, and to the expression of thought and feeling, etc. With aspect open, shall erect his head. Pope. The Moor is of a free and open nature. Shak. The French are always open, familiar, and talkative. Addison.

(b) Not concealed or secret; not hidden or disguised; exposed to view or to knowledge; revealed; apparent; as, open schemes or plans; open shame or guilt. His thefts are too open. Shak. That I may find him, and with secret gaze Or open admiration him behold. Milton.

6. Not of a quality to prevent communication, as by closing water ways, blocking roads, etc.; hence, not frosty or inclement; mild; — used of the weather or the climate; as, an open season; an open winter. Bacon.

7. Not settled or adjusted; not decided or determined; not closed or withdrawn from consideration; as, an open account; an open question; to keep an offer or opportunity open.

8. Free; disengaged; unappropriated; as, to keep a day open for any purpose; to be open for an engagement.

9. (Phon.) (a) Uttered with a relatively wide opening of the articulating organs; — said of vowels; as, the än fär is open as compared with the a in say. (b) Uttered, as a consonant, with the oral passage simply narrowed without closure, as in uttering s.

10. (Mus.) (a) Not closed or stopped with the finger; — said of the string of an instrument, as of a violin, when it is allowed to vibrate throughout its whole length. (b) Produced by an open string; as, an open tone. The open air, the air out of doors. — Open chain. (Chem.) See Closed chain, under Chain. — Open circuit (Elec.), a conducting circuit which is incomplete, or interrupted at some point; — opposed to an uninterrupted, or Ant: closed circuit. — Open communion, communion in the Lord's supper not restricted to persons who have been baptized by immersion. Cf. Close communion, under Close, a. — Open diapason (Mus.), a certain stop in an organ, in which the pipes or tubes are formed like the mouthpiece of a flageolet at the end where the wind enters, and are open at the other end. — Open flank (Fort.), the part of the flank covered by the orillon. — Open-front furnace (Metal.), a blast furnace having a forehearth. — Open harmony (Mus.), harmony the tones of which are widely dispersed, or separated by wide intervals. — Open hawse (Naut.), a hawse in which the cables are parallel or slightly divergent. Cf. Foul hawse, under Hawse. — Open hearth (Metal.), the shallow hearth of a reverberatory furnace. — Open-hearth furnace, a reverberatory furnace; esp., a kind of reverberatory furnace in which the fuel is gas, used in manufacturing steel. — Open-hearth process (Steel Manuf.), a process by which melted cast iron is converted into steel by the addition of wrought iron, or iron ore and manganese, and by exposure to heat in an open-hearth furnace; — also called the Siemens-Martin process, from the inventors. — Open-hearth steel, steel made by an open-hearth process; — also called Siemens-Martin steel. — Open newel. (Arch.) See Hollow newel, under Hollow. — Open pipe (Mus.), a pipe open at the top. It has a pitch about an octave higher than a closed pipe of the same length. — Open-timber roof (Arch.), a roof of which the constructional parts, together with the under side of the covering, or its lining, are treated ornamentally, and left to form the ceiling of an apartment below, as in a church, a public hall, and the like. — Open vowel or consonant. See Open, a., 9.

Note: Open is used in many compounds, most of which are self- explaining; as, open-breasted, open-minded.

Syn. — Unclosed; uncovered; unprotected; exposed; plain; apparent; obvious; evident; public; unreserved; frank; sincere; undissembling; artless. See Candid, and Ingenuous.

OPEN
O"pen, n.

Defn: Open or unobstructed space; clear land, without trees or
obstructions; open ocean; open water. "To sail into the open." Jowett
(Thucyd. ).
Then we got into the open. W. Black.
In open, in full view; without concealment; openly. [Obs.] Beau. &
Fl.

OPEN
O"pen v. t. [imp. & p. p. Opened; p. pr. & vb. n. Opening.] Etym:
[AS. openian. See Open,a.]

1. To make or set open; to render free of access; to unclose; to unbar; to unlock; to remove any fastening or covering from; as, to open a door; to open a box; to open a room; to open a letter. And all the windows of my heart I open to the day. Whittier.

2. To spread; to expand; as, to open the hand.

3. To disclose; to reveal; to interpret; to explain. The king opened himself to some of his council, that he was sorry for the earl's death. Bacon. Unto thee have I opened my cause. Jer. xx. 12. While he opened to us the Scriptures. Luke xxiv. 32.

4. To make known; to discover; also, to render available or accessible for settlements, trade, etc. The English did adventure far for to open the North parts of America. Abp. Abbot.

5. To enter upon; to begin; as, to open a discussion; to open fire upon an enemy; to open trade, or correspondence; to open a case in court, or a meeting.

6. To loosen or make less compact; as, to open matted cotton by separating the fibers. To open one's mouth, to speak. — To open up, to lay open; to discover; to disclose. Poetry that had opened up so many delightful views into the character and condition of our "bold peasantry, their country's pride." Prof. Wilson.

OPEN
O"pen, v. i.

1. To unclose; to form a hole, breach, or gap; to be unclosed; to be
parted.
The earth opened and swallowed up Dathan, and covered the company of
Abiram. Ps. cvi. 17.

2. To expand; to spread out; to be disclosed; as, the harbor opened to our view.

3. To begin; to commence; as, the stock opened at par; the battery opened upon the enemy.

4. (Sporting)

Defn: To bark on scent or view of the game.

OPEN-AIR
O"pen-air`, a.

Defn: Taking place in the open air; outdoor; as, an open-air game or meeting.

OPENBILL
O"pen*bill`, n. (Zoöl.)

Defn: A bird of the genus Anastomus, allied to the stork; — so called because the two parts of the bill touch only at the base and tip. One species inhabits India, another Africa. Called also open- beak. See Illust. (m), under Beak.

OPEN DOOR O"pen door. (a) Open or free admission to all; hospitable welcome; free opportunity.

She of the open soul and open door,
With room about her hearth for all mankind.
Lowell.

(b) In modern diplomacy, opportunity for political and commercial intercourse open to all upon equal terms, esp. with reference to a nation whose policy is wholly or partially fixed by nations foreign to itself, or to territory newly acquired by a conquering nation. In this sense, often used adjectively, as, open-door system, open-door policy, etc.

The steps taken by Britain to maintain the open door have so far proved to be perfectly futile. A. R. Colquhoun.

OPENER
O"pen*er, n.

Defn: One who, or that which, opens. "True opener of my eyes."
Milton.

OPEN-EYED
O"pen-eyed`, a.

Defn: With eyes widely open; watchful; vigilant. Shak.

OPEN-HANDED
O"pen-hand`ed, a.

Defn: Generous; liberal; munificent.
— O"pen-hand`ed*ness, n. J. S. Mill.

OPEN-HEADED
O"pen-head`ed, a.

Defn: Bareheaded. [Obs.]

OPEN-HEARTED
O"pen-heart`ed, a.

Defn: Candid; frank; generous. Dryden.
— O"pen-heart`ed*ly, adv.
— O"pen-heart`ed*ness, n. Walton.

OPEN-HEARTH STEEL
Open-hearth steel.

Defn: See under Open.

OPENING
O"pen*ing, n.

1. The act or process of opening; a beginning; commencement; first appearance; as, the opening of a speech. The opening of your glory was like that of light. Dryden.

2. A place which is open; a breach; an aperture; a gap; cleft, or hole. We saw him at the opening of his tent. Shak.

3. Hence: A vacant place; an opportunity; as, an opening for business. [Colloq.] Dickens.

4. A thinly wooded space, without undergrowth, in the midst of a forest; as, oak openings. [U.S.] Cooper.

OPENLY
O"pen*ly, adv. Etym: [AS. openlice.]

1. In an open manner; publicly; not in private; without secrecy. How grossly and openly do many of us contradict the precepts of the gospel by our ungodliness! Tillotson.

2. Without reserve or disguise; plainly; evidently. My love . . . shall show itself more openly. Shak.

OPEN-MOUTHED
O"pen-mouthed`, a.

Defn: Having the mouth open; gaping; hence, greedy; clamorous.
L'Estrange.

OPENNESS
O"pen*ness, n.

Defn: The quality or state of being open.

OPEN SEA
Open sea. (Internat. Law)

Defn: A sea open to all nations. See Mare clausum.

OPEN VERDICT
Open verdict. (Law)

Defn: A verdict on a preliminary investigation, finding the fact of a crime but not stating the criminal, or finding the fact of a violent death without disclosing the cause.

OPENWORK
O"pen*work`, n.

1. Anything so constructed or manufactured (in needlework, carpentry, metal work, etc.) as to show openings through its substance; work that is perforated or pierced.

2. (Mining)

Defn: A quarry; an open cut. Raymond.

OPERA Op"er*a, n. Etym: [It., fr. opera work, composition, opposed to an improvisation, fr. L. opera pains work, fr. opus, operis, work, labor: cf. F. opéra. See Operate.]

1. A drama, either tragic or comic, of which music forms an essential part; a drama wholly or mostly sung, consisting of recitative, arials, choruses, duets, trios, etc., with orchestral accompaniment, preludes, and interludes, together with appropriate costumes, scenery, and action; a lyric drama.

2. The score of a musical drama, either written or in print; a play set to music.

3. The house where operas are exhibited. Opéra bouffe Etym: [F. opéra opera + bouffe comic, It.buffo], Opera buffa Etym: [It.], light, farcical, burlesque opera. — Opera box, a partially inclosed portion of the auditorium of an opera house for the use of a small private party. — Opéra comique Etym: [F.], comic or humorous opera. — Opera flannel, a light flannel, highly finished. Knight. — Opera girl (Bot.), an East Indian plant (Mantisia saltatoria) of the Ginger family, sometimes seen in hothouses. It has curious flowers which have some resemblance to a ballet dancer, whence the popular name. Called also dancing girls. — Opera glass, a short telescope with concave eye lenses of low power, usually made double, that is, with a tube and set of glasses for each eye; a lorgnette; — so called because adapted for use at the opera, theater, etc. — Opera hat, a gentleman's folding hat. — Opera house, specifically, a theater devoted to the performance of operas. — Opera seria Etym: [It.], serious or tragic opera; grand opera.

OPERABLE
Op"er*a*ble, a.

Defn: Practicable. [Obs.]

OPERAMETER
Op`er*am"e*ter, n. Etym: [L. opus, operis, pl. opera work + -meter.]