/ Dictionary / Index I isopropyl ether: Meaning and Definition of Find definitions for: i'sopro'pyl e'ther Pronunciation: [key] — Chem. Chem. a colorless, volatile, flammable, slightly water-soluble liquid, CHO, used chiefly as a solvent for waxes, fats, and resins. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isopropylbenzene isopropyl group Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language