or Plexiglas or Perspex
Trademark names of the organic compound polymethyl methacrylate, a synthetic polymer of methyl methacrylate.
Colourless and highly transparent, the solid material has high dimensional stability and good resistance to weathering and shock. It is used in aircraft canopies and windows, in boat windshields, and as a general alternative to glass in many applications. An object made of Lucite has the unusual property of keeping a beam of light reflected within its surfaces and thus carrying the beam around bends and corners; Lucite is therefore used in devices for illuminating interior organs during surgery as well as for ornaments, medallions, and lenses.