/ Dictionary / Index A aurochs: Meaning and Definition of Find definitions for: au•rochs Pronunciation: (ôr'oks), [key] — pl. -rochs. a large, black European wild ox, Bos primigenius: extinct since 1627. (not used scientifically) the European bison. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aurochs (Thesaurus) Aurobindo Aurora Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language