(Nom déposé) Sorte de plastique très résistant mais presque transparent.
(Trademark) A light transparent weather resistant thermoplastic; Also called: plexiglass.
Trademark for a clear, lightweight, tough plastic first produced in the US 1930. It is widely used for watch glasses, advertising signs, domestic baths, motorboat windshields, aircraft canopies, and protective shields. Its chemical name is polymethylmethacrylate (PMMA).