Ox, oks, n. a well-known animal that chews the cud, the female of which supplies the chief part of the milk used as human food: the male of the cow, esp. when castrated:—pl. Ox′en, used for both male and female.—ns. Ox′-bot, Ox′-war′bler, a bot-fly or its larva, found under the skin of cattle; Ox′eye, a common plant in meadows, with a flower like the eye of an ox.—adj. Ox′-eyed, having large, full, ox-like eyes.—ns. Ox′-goad (see Goad); Ox′-peck′er, Ox′-bird, an African bird, which eats the parasites infesting the skins of cattle—also Beefeater; Ox′-tail-soup, a kind of soup made of several ingredients, one of which is an oxtail cut in joints.—Have the black ox tread on one's foot, to experience sorrow or misfortune. [A.S. oxa, pl. oxan; Ice. uxi; Ger. ochs, Goth. auhsa, Sans. ukshan.]

Oxalate, oks′a-lāt, n. a salt formed by a combination of oxalic acid with a base.—n. Ox′alite, a yellow mineral composed of oxalate of iron.

Oxalis, oks′a-lis, n. wood-sorrel: (bot.) a genus of plants having an acid taste.—adj. Oxal′ic, pertaining to or obtained from sorrel. [Gr.,—oxys, acid.]

Oxford clay, oks′ford klā, n. (geol.) the principal member of the Middle Oolite series.—Oxford movement (see Tractarianism).

Oxgang, oks′gang, n. as much land as can be tilled by the use of an ox (averaging about 15 acres)—called also Ox′land or Ox′gate.

Ox-head, oks′-hed, n. (Shak.) blockhead, dolt.

Oxide, oks′īd, n. a compound of oxygen and some other element or organic radical. Oxides are of three kinds—acid-forming, basic, and neutral.—n. Oxidabil′ity.—adj. Ox′idable, capable of being converted into an oxide.—v.t. Ox′idate (same as Oxidise).—ns. Oxidā′tion, Oxidise′ment, act or process of oxidising; Ox′idātor, a contrivance for drawing a current of air to the flame of a lamp.—adj. Oxidis′able, capable of being oxidised.—v.t. Ox′idise, to convert into an oxide.—v.i. to become an oxide.—n. Oxidis′er.

Oxlip, oks′lip, n. a species of primrose, having its flowers in an umbel on a stalk like the cowslip.

Oxonian, oks-ō′ni-an, adj. of or pertaining to Oxford or to its university.—n. an inhabitant or a native of Oxford: a student or graduate of Oxford.

Oxter, oks′tėr, n. (Scot.) the armpit.—v.t. to hug with the arms: to support by taking the arm.