/ Dictionary / Index O omentum: Meaning and Definition of Find definitions for: o•men•tum Pronunciation: (ō-men'tum), [key] — pl. -ta a fold of the peritoneum connecting the stomach and the abdominal viscera forming a protective and supportive covering. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omentum (Thesaurus) omen omer Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language