/ Dictionary / Index I isoamyl group: Meaning and Definition of Find definitions for: isoam'yl group" Pronunciation: [key] — Chem. Chem. the univalent group CH. Also calledCf. amyl group, pentyl group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isoamyl benzyl ether isoamyl nitrite Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language