Om, interj. & n. [Also Aum, Um.] [Skr. om.] 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.

Omagra
Om´a•gra, n. [NL., fr. Gr. shoulder + seizure.] (Med.) Gout in the shoulder.

Omahas
O´ma•has´, n. pl.; sing. Omaha . (Ethnol.) 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 [Etymol. uncertain.] (Bot.) The wood of Diospyros ebenaster, a kind of ebony found in Ceylon.

Omasum
O•ma´sum, n. [L.] (Anat.) The third division of the stomach of ruminants. See Manyplies, and Illust. under Ruminant. { Om´ber, Om´bre}, n. [F. hombre, fr. Sp. hombre, lit., a man, fr. L. homo. See Human.] 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. [F., of uncertain origin.] (Zoöl.) A large Mediterranean food fish ( Umbrina cirrhosa): — called also umbra, and umbrine.

Ombrometer
Om•brom´e•ter, n. [Gr. rain + -meter: cf. F. ombrometre.] (Meteorol.) An instrument for measuring the rain that falls; a rain gauge.

Omega
O•me´ga, n. [NL., fr. Gr., i.e., the great or long o. Cf. 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. [ Omega + - oid.] Having the form of the Greek capital letter Omega (&OMEGA;).

Omelet
Om´e•let, n. [F. omelette, OF. amelette, alumete, alumelle, perh. fr. L. lamella. Cf. Lamella.] Eggs beaten up with a little flour, etc., and cooked in a frying pan; as a plain omelet.

Omen
O´men, n. [L. omen, the original form being osmen, according to Varro.] 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.] 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. Attended by, or containing, an omen or omens; as happy- omened day.

Omental
O•men´tal, a. (Anat.) Of or pertaining to an omentum or the omenta.

Omentum
O•men´tum, n. ; pl. Omenta (#). [L.] (Anat.) A free fold of the peritoneum, or one serving to connect viscera, support blood vessels, etc.; an epiploön. 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. [Cf. Homer.] A Hebrew measure, the tenth of an ephah. See Ephah. Ex. xvi. 36.

Omicron
O•mi´cron, n. [Written also omikron.] [NL., fr. Gr. &OMICRON; ο. See Micro- .] Lit., the little, or short, O, o; the fifteenth letter of the Greek alphabet.

Omiletical
Om•i•let´ic•al, a. Homiletical. [Obs.]

Ominate
Om´i•nate, v. t. & i. [L. ominatus, p. p. of ominari to presage, fr. omen.] To presage; to foreshow; to foretoken. [Obs.] Dr. H. More.

Omination
Om•i•na´tion, n. [L. ominatio.] The act of ominating; presaging. [Obs.] Fuller.

Ominous
Om´i•nous, a. [L. ominosus, fr. omen. See Omen.] 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. Capable of being omitted; that may be omitted.

Omission
O•mis´sion, n. [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. [See Omit.] Leaving out; omitting. Bp. Hall. — O•mis´sive•ly, adv.

Omit
O•mit´, v. t. [ imp. & p. p. Omitted; p. pr. & vb. n. Omitting.] [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. The act of omitting, or the state of being omitted; forbearance; neglect. Shak.

Omitter
O•mit´ter, n. One who omits. Fuller.

Ommateal
Om•ma•te´al, a. (Zoöl.) Of or pertaining to an ommateum.

Ommateum
Om•ma•te´um, n. ; pl. Ommatea (#). [NL., fr. Gr.,, the eye.] (Zoöl.) A compound eye, as of insects and crustaceans.

Ommatidium
Om•ma•tid´i•um, n. ; pl. Ommatidia (#). [NL., dim. of Gr.,, the eye.] (Zoöl.) One of the single eyes forming the compound eyes of crustaceans, insects, and other invertebrates.

Omni-
Om´ni- [L. omnis all.] A combining form denoting all, every, everywhere; as in omnipotent, all-powerful; omnipresent.

Omnibus
Om´ni•bus, n. [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) 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. [ Omni- + corporeal.] Comprehending or including all bodies; embracing all substance. [R.] Cudworth.

Omniety
Om•ni´e•ty, n. 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. [L. omnifarius; omnis all + -farius. Cf. Bifarious.] Of all varieties, forms, or kinds. "Omnifarious learning." Coleridge.

Omniferous
Om•nif´er•ous, a. [L. omnifer; omnis all + ferre to bear.] All- bearing; producing all kinds.

Omnific
Om•nif´ic, a. [ Omni- + L. -ficare (in comp.) to make.] All-creating. "The omnific word." Milton.

Omniform
Om´ni•form, a. [L. omniformis; omnis all + forma form: cf. F. omniforme.] Having every form or shape. Berkeley.

Omniformity
Om•ni•for´mi•ty, n. The condition or quality of having every form. Dr. H. More.

Omnify
Om´ni•fy, v. t. [ Omni- + -fy.] 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. [L. omniqenus; omnis all + genus kind.] Consisting of all kinds. [R.]

Omnigraph
Om´ni•graph, n. [ Omni- + -graph.] A pantograph. [R.]

Omniparient
Om•ni•pa´ri•ent, a. [L. omniparens all-producing; omnis all + parere to bring forth.] Producing or bringing forth all things; all- producing. [R.]

Omniparity
Om•ni•par´i•ty, n. [ Omni- + -parity.] Equality in every part; general equality.

Omniparous
Om•nip´a•rous, a. [See Omniparient.] Producing all things; omniparient.

Omnipatient
Om•ni•pa´tient, a. [ Omni- + patient.] Capable of enduring all things. [R.] Carlyle. { Om•ni•per•cip´i•ence, Om•ni•per•cip´i•en•cy } n. Perception of everything.

Omnipercipient
Om•ni•per•cip´i•ent, a. [ Omni- + percipient.] Perceiving everything. Dr. H. More. { Om•nip´o•tence, Om•nip´o•ten•cy } n. [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. [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. In an omnipotent manner.

Omnipresence
Om•ni•pres´ence, n. [Cf. F. omnipresence.] 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. Omnipresence. [Obs.]

Omnipresent
Om•ni•pres´ent, a. [ Omni- + present: cf.F. omnipresent.] Present in all places at the same time; ubiquitous; as the omnipresent Jehovah. Prior.

Omnipresential
Om•ni•pre•sen´tial, a. Implying universal presence. [R.] South.

Omniprevalent
Om•ni•prev´a•lent, a. [ Omni- + prevalent.] Prevalent everywhere or in all things. Fuller.

Omniscience
Om•nis´cience, n. [Cf. F. omniscience.] The quality or state of being omniscient; - - an attribute peculiar to God. Dryden.

Omnisciency
Om•nis´cien•cy, n. Omniscience.

Omniscient
Om•nis´cient, a. [ Omni- + L. sciens, - entis, p. pr. of scire to know: cf. F. omniscient. See Science.] 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. [L. omniscius. See Omniscient.] All-knowing. [Obs.] Hakewill.

Omnispective
Om•ni•spec´tive, a. [ Omni- + L. spectus, p. p. of specere, spicere, to view.] Beholding everything; capable of seeing all things; all- seeing. [R.] "Omnispective Power!" Boyse.

Omnium
Om´ni•um, n. [L., of all, gen. pl. of omnis all.] (Eng.Stock Exchange) 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. [A macaronic compound of L. omnium, gen.pl. of omnis all, and E. gather.] A miscellaneous collection of things or persons; a confused mixture; a medley. [Colloq. & Humorous] Selden.

Omnivagant
Om•niv´a•gant, a. [ Omni + L. vagans, p. pr. of vagari to wander.] Wandering anywhere and everywhere. [R.]

Omnivora
Om•niv´o•ra, n. pl. [NL. See Omnivorous.] (Zoöl.) 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. [L. omnivorus; omnis all + vorate to eat greedily. See Voracious.] 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- [Gr. the shoulder.] A combining form used in anatomy to indicate connection with, or relation to, the shoulder or the scapula.

Omohyoid
O•mo•hy´oid, a. [ Omo- + hyoid.] (Anat.) Of or pertaining to the shoulder and the hyoid bone; as the omohyoid muscle.

Omophagic
O´mo•phag´ic, a. [Gr. ; raw + to eat.] Eating raw flesh; using uncooked meat as food; as omophagic feasts, rites.

Omoplate
Om´o•plate, n. [F., from Gr. . See Omo-, and Plate.] (Anat.) The shoulder blade, or scapula.

Omostegite
O•mos´te•gite, n. [ Omo- + Gr. a roof.] (Zoöl.) The part of the carapace of a crustacean situated behind the cervical groove.

Omosternal
O•mo•ster´nal, a. (Anat.) Of or pertaining to the omosternum.

Omosternum
O•mo•ster´num, n. [ 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. [Gr., from an unripe grape or olive: cf.F. omphacin.] Of, pertaining to, or expressed from, unripe fruit; as omphacine oil.

Omphalic
Om•phal´ic, a. [Gr. having a boss, bossy, fr. the navel. See Navel.] (Anat.) Of or pertaining to the umbilicus, or navel.

Omphalo-
Om´pha•lo- [Gr. the navel.] A combining form indicating connection with, or relation to, the umbilicus, or navel.

Omphalocele
Om´pha•lo•cele, n. [Gr. the navel + a tumor: cf.F. omphalocele.] (Med.) A hernia at the navel.

Omphalode
Om´pha•lode, n. [ Omphalo- + Gr. form.] (Bot.) 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. [ Omphalo- + -mancy.] 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. [ Omphalo- + mesaraic.] (Anat.) Omphalomesenteric.

Omphalomesenteric
Om•pha•lo•mes•en•ter´ic, a. [ Omphalo- + mesenteric.] (Anat.) 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. [ Omphalo- + Gr. breath, spirit, soul: cf. F. omphalopsyque.] (Eccl.Hist.) A name of the Hesychasts, from their habit of gazing upon the navel. { Om•pha•lop´ter, Om•pha•lop´tic } n. [Gr. the navel + one who looks, belonging to sight: cf.F. omphaloptre.] An optical glass that is convex on both sides. [Obs.] Hutton.

Omphalos
Om´pha•los, n. [L., fr. Gr. .] (Anat.) The navel.

Omphalotomy
Om•pha•lot´o•my, n. [Gr. ; the navel + to cut: cf. F. omphalotomie.] (Surg.) The operation of dividing the navel-string.

Omy
O´my, a. Mellow, as land. [Prov.Eng.] Ray.