D defs.my
Entry 1 sense Webster, 1913

Lucite

/(lo͞o"sīt)/ · Lu·cite · IPA /lˈuːsˌaɪt/
01 prop. n. A brand name for a transparent plastic based on methyl methacrylate esters; the term is often used generically to refer to any similar tran…
  1. 1.
    A brand name for a transparent plastic based on methyl methacrylate esters; the term is often used generically to refer to any similar transparent plastic. It is sold in various forms, including rigid sheets which may be used as a substitute for glass in windows.[Trademark]