Definition of Plexiglas in English:


Syllabification: Plex·i·glas
Pronunciation: /ˈpleksiˌglas
(also plexiglas or plexiglass)


trademark, chiefly North American
  • A solid transparent plastic made of polymethyl methacrylate (the same material as perspex or Lucite).
    More example sentences
    • Although resembling a stone structure from the outside, from the interior the pyramid is seen to be constructed of translucent plexiglas panels over a wood framework.
    • Investigators have analyzed videos of vampire bats charging down plexiglas runways, and learned that they have evolved a novel running gait.
    • The door to the small plexiglas room was opened.


1930s: from Greek plēxis 'percussion' + glass.

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