/ Dictionary / Index I isobutyl propionate: Meaning and Definition of Find definitions for: i'so•bu'tyl pro'pionate Pronunciation: (ī'su-by'til, -byt'l, ī"su-), [key] — Chem. Chem. a colorless liquid, CHO, used chiefly as a paint, varnish, and lacquer solvent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isobutyl nitrite isocarboxazid 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