/ Dictionary / Index I isoamyl: Meaning and Definition of Find definitions for: i•so•am•yl Pronunciation: (ī"sō-am'il), [key] — adj. Chem. containing the isoamyl group; isopentyl. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isoagglutinin isoamyl acetate Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language