(n.) A substance composed essentially of gun cotton and camphor, and when pure resembling ivory in texture and color, but variously colored to imitate coral, tortoise shell, amber, malachite, etc. It is used in the manufacture of jewelry and many small articles, as combs, brushes, collars, and cuffs; -- originally called xylonite.

Bakelite Buna Celluloid Formica Lucite Mylar PVC Perspex Plexiglas Styrofoam Teflon acetate acetate nitrate alkyd aminoplast casein plastic cellophane cellulose acetate cellulose ether cellulose nitrate cellulosic coumarone-indene epoxy fluorocarbon plastic furane lignin melamine multiresin neoprene nitrate nylon phenolic urea polyester polymeric amide polypropylene polystyrene polyvinyl chloride resinoid silicone resin tetrafluoroethylene urea urea formaldehyde vinyl