Etymology

plexiglass

P3L1E1X8I1G2L1A1S1S1

Today it means: polymethyl methacrylate (polymer of methyl methacrylate), a tough transparent plastic used sometimes in lieu of glass. Full definition →

German Plexiglas
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The story

  1. German · borrowed fromPlexiglas
  2. English todayplexiglass

Borrowed from German Plexiglas, a trademark.

Etymology from Wiktionary, CC BY-SA 4.0.