/ Dictionary / Index M methacrylate: Meaning and Definition of Find definitions for: meth•ac•ry•late Pronunciation: (meth-ak'ru-lāt"), [key] — n. Chem. an ester or salt derived from methacrylic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methacetin methacrylate resin Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language