6994plastic (material)TTen-USVocabulário Colaborativo em Artes e Arquitetura active approved plastic (material)A general term for any of a large and varied class of natural or synthetic organic materials that can be molded, extruded, or cast when soft or liquid, and then set into a rigid or slightly elastic form. Natural plastics include tree resins, beeswax, gutta-percha, horn, and clay. Synthetic plastics were first made in the 19th century. Plastics are used widely in manufacturing.

Source: AAT

http://vocab.getty.edu/page/aat/300014570

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