polycarbonate

noun

Any of a group of thermoplastics that are linear polyesters of carbonic acid, especially those derived from bisphenol A and phosgene, characterized by high-impact strength, light weight, and flexibility, and used as shatter-resistant substitutes for glass.

noun

Any of a range of polymers of aromatic carbonates; they are used to make light, flexible alternatives to glass. Abbreviation: PC