"Plastic" is a word in ENGLISH

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). [MW10 gives
origin of word as 1905]

Capable of being molded, formed, or modeled, as clay or
plaster; -- used also figuratively; as, the plastic mind of a child.

Having the power to give form or fashion to a mass of
matter; as, the plastic hand of the Creator.

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.

A combining form signifying developing, forming, growing;
as, heteroplastic, monoplastic, polyplastic.