Ocean, ō′shan, n. the vast expanse of salt water that covers the greater part of the surface of the globe: one of its five great divisions (Atlantic, Pacific, Indian, Arctic, Antarctic): any immense expanse or vast quantity.—adj. pertaining to the great sea.—n. O′cean-bā′sin, the depression of the earth's surface in which the waters of an ocean are contained.—adjs. Ocean′ian, pertaining to Oceania, which includes Polynesia, Micronesia, Melanesia, Australasia, and Malaysia; Ocean′ic, pertaining to the ocean: found or formed in the ocean or high seas, pelagic: wide like the ocean.—ns.pl. Ocean′ic-is′lands, islands far from the mainland, situated in the midst of the ocean; Ocean′ides, marine molluscs or sea-shells.—ns. O′cean-lane (see Lane); Oceanog′rapher, one versed in oceanography.—adj. Oceanograph′ic.—ns. Oceanog′raphy, the scientific description of the ocean; Oceanol′ogy, the science of the ocean: a treatise on the ocean. [Fr.,—L. oceanus—Gr. ōkeanos, perh. from ōkys, swift.]
Ocellate, -d, ō′sel-lāt, -ed, adj. resembling an eye: marked with spots resembling eyes, as the feathers of a peacock.—adjs. Ocel′lar, Oc′ellary, ocellate, pertaining to ocelli; Ocellif′erous, Ocellig′erous, bearing spots like small eyes.—n. Ocel′lus, a little eye, an eye-spot: one of the round spots of varied colour in the tail of a peacock, &c.:—pl. Ocel′lī. [L. ocellatus—ocellus, dim. of oculus, an eye.]
Ocelot, ō′se-lot, n. the name of several species of animals in tropical America allied to the leopard, but much smaller.—adj. O′celoid. [Mex.]
Ocher, Ocherous. See Ochre.
Och hone, oh hōn, an exclamation of lamentation. [Ir.]
Ochidore, ok′i-dōr, n. a shore-crab.
Ochlesis, ok-lē′sis, n. an unhealthy condition due to overcrowding.—adj. Ochlet′ic. [Gr. ochlos, a crowd.]
Ochlocracy, ok-lok′ra-si, n. mob-rule: government by the populace.—adjs. Ochlocrat′ic, -al.—adv. Ochlocrat′ically. [Gr. ochlokratia—ochlos, the mob, kratia, rule.]
Ochre, ō′kėr, n. a fine clay, mostly pale yellow, used for colouring walls, &c.: (slang) money, esp. gold.—adjs. O′cherous, Ochrā′ceous, O′chreous, O′chroid, O′chry, consisting of, containing, or resembling ochre. [Fr.,—L. ochra—Gr. ōchra—ōchros, pale yellow.]
Ocrea, ō′kre-a, n. (bot.) a sheath formed of two stipules united round a stem:—pl. O′chreæ, O′creæ.—adj. O′chreāte. [L. ochrea, a legging.]