Home › Words › P › plexiglassplexiglassplexiglass means polymethyl methacrylate (polymer of methyl methacrylate), a tough transparent plastic used sometimes in lieu of glass.Among words judged in Lexicurio's Arena, plexiglass ranks #36,618 of 42,749 for Qualifying.EtymologyBorrowed from German Plexiglas, a trademark.nounpolymethyl methacrylate (polymer of methyl methacrylate), a tough transparent plastic used sometimes in lieu of glass.e.g.“The wall and door of the compartment on the corridor side are of plexiglass, fully curtained on the inside.” — 1960 March, G. Freeman Allen, “Europe's most luxurious express - the "Settebello"”, in Trains Illustrated, page 141:Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.perspex 79% match — Plexiglas vs plexiglass →polymethylacrylate 72% match — polymethyl acrylate vs plexiglass →polycarb 62% match — polycarbonate vs plexiglass →acrylic 62% match — Derived from acrylic acid or acrylonitrile. vs plexiglass →armorplast 61% match — A fictional material, often described as being strong, flexible, and transparent. vs plexiglass →polymethacrylic 60% match — Of or relating to a polymer of methacrylic acid vs plexiglass →polymethacrylate 59% match — Any salt or ester of polymethacrylic acid vs plexiglass →polyformaldehyde 59% match — polyoxymethylene vs plexiglass →