/ Dictionary / Index A aminoplast: Meaning and Definition of Find definitions for: a•mi•no•plast Pronunciation: (u-mē'nu-plast", am'u-nō-), [key] — n. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aminoplast (Thesaurus) aminophylline amino resin Related Content Daily Word Quiz: topography Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language