/ Dictionary / Index O oleomargarine: Meaning and Definition of Find definitions for: o•le•o•mar•ga•rine Pronunciation: (ō"lē-ō-mär'ju-rin, -rēn", -märj'rin, -rēn), [key] — n. margarine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oleomargarine (Thesaurus) oleograph oleo oil Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language