/ Dictionary / Index B benzoyl: Meaning and Definition of Find definitions for: ben•zo•yl Pronunciation: (ben'zō-il), [key] — Chem. Chem. —adj. containing the benzoyl group. —n. the benzoyl group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. benzoxy- benzoylate Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language