/ Dictionary / Index O oleate: Meaning and Definition of Find definitions for: o•le•ate Pronunciation: (ō'lē-āt"), [key] — n. an ester or a salt of oleic acid. a preparation, as an ointment, composed of medicated oleic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oleaster olecranon Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language