/ Dictionary / Index A acetylbenzene: Meaning and Definition of Find definitions for: a•ce•tyl•ben•zene Pronunciation: (u-sēt"l-ben'zēn, -ben-zēn', u-set"-, as"i-tl-), [key] — n. Chem. acetophenone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acetylate acetyl chloride Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language