polymethyl methacrylate


polymethyl methacrylate
noun
a transparent plastic used as a substitute for glass
Hypernyms: ↑acrylic, ↑acrylic resin, ↑acrylate resin
Hyponyms: ↑Lucite, ↑Perspex, ↑Plexiglas, ↑plexiglass

Useful english dictionary. 2012.