/ Dictionary / Index O oleyl alcohol: Meaning and Definition of Find definitions for: o•le'yl al'cohol Pronunciation: (ō-lē'il), [key] — Chem. Chem. an unsaturated, fatty alcohol, derived from oleic acid, CHO, used chiefly in organic synthesis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. O level olfaction Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language