/ Dictionary / Index I isopropylbenzene: Meaning and Definition of Find definitions for: i•so•pro•pyl•ben•zene Pronunciation: (ī"su-prō"pil-ben'zēn, -ben-zēn'), [key] — n. Chem. cumene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isopropyl alcohol isopropyl ether Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language