Lucite Syllabification: (Lu·cite)Pronunciation: /ˈlo͞oˌsīt/Definition of Lucite noun trademark, chiefly North American a solid transparent plastic made of polymethyl methacrylate (the same material as Perspex or Plexiglas): this replica, made of Lucite, is 7 inches tall [as modifier]:a clear Lucite baseOrigin: 1930s: from Latin lux, luc- 'light' + -ite1Lucite in other Oxford dictionaries Definition of Lucite in the British & World English dictionary