(chemistry) Any salt or ester of methacrylic acid / (chemistry) The thermoplastic polymethyl methacrylate

plural of methyacrylate

(chemistry) A tough, transparent thermoplastic polymer of methyl methyacrylate; it is used as a substitute for glass under the proprietary names of Perspex, Plexiglass and Lucite

(chemistry) A chemical compound C₅O₂H₈, mostly used as a monomer for the production of the transparent plastic polymethyl methacrylate (PMMA).