Chapter Oliganthous to Omnibus of O by Webster's Dictionary (1913 Edition)

reckoned time, being the interval from one celebration of the Olympic games to another, beginning with the victory of Corœbus in the foot race, which took place in the year 776 b.c.; as, the era of the olympiads.

Olympian
(O*lym"pi*an O*lym"pic) (- pik), a. [L. Olympius, Olympicus, Gr. 'Oly`mpios, 'Olympiko`s, fr. 'O`lympos: cf. F. olympique. See Olympiad.] 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.

Olympionic
(O*lym`pi*on"ic) n. [Gr. a conqueror in the Olympic games.] An ode in honor of a victor in the Olympic games. [R.] Johnson.

- oma
(-o"ma) 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. [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.

Omber
(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. ombrométre.] (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

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.