/ Dictionary / Index O oribi: Meaning and Definition of Find definitions for: or•i•bi Pronunciation: (ôr'u-bē, or'-), [key] — pl. -bis. a small tan-colored antelope, Ourebia ourebi, of south and east Africa, with spikelike horns. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. -orial orichalcum Related Content Daily Word Quiz: meritocracy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language