·adj Having the power to give form or fashion to a mass of matter; as, the plastic hand of the Creator.
II. Plastic ·adj Capable of being molded, formed, or modeled, as clay or plaster;
— used also figuratively; as, the plastic mind of a child.
III. 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].
IV. 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.