adj having the power to give form or fashion to a mass of matter; as, the plastic hand of the creator.
2. plastic ·adj capable of being molded, formed, or modeled, as clay or plaster;
used also figuratively; as, the plastic mind of a child.
3. plastic ·noun a substance composed predominantly of a synthetic organic high polymer capable of being cast or molded; many varieties of plastic are used to produce articles of commerce (after 1900). [mw 10 gives origin of word as 1905].
4. plastic ·adj pertaining or appropriate to, or characteristic of, molding or modeling; produced by, or appearing as if produced by, molding or modeling;
said of sculpture and the kindred arts, in distinction from painting and the graphic arts.