Plexiglas

[ plek-si-glas, -glahs ]
/ ˈplɛk sɪˌglæs, -ˌglɑs /

Trademark.

a brand name for a thermoplastic polymer of methyl methacrylate that is light in weight, resistant to weathering, capable of being bent when hot but returning to its original shape when reheated, used for signs
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for plexiglas

Plexiglas

/ (ˈplɛksɪˌɡlɑːs) /

noun

trademark US a transparent plastic, polymethylmethacrylate, used for combs, plastic sheeting, etc

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012