1. noun /ˈplɑːstɪk/ or /ˈplæstɪk,ˈplæstɪk/
a) Any solid but malleable substance.
b) A synthetic, thermoplastic, hydrocarbon-based polymer, solid material.
2. adjective /ˈplɑːstɪk/ or /ˈplæstɪk,ˈplæstɪk/
the rage [...] betook itself at last to certain missile weapons; which, though from their plastic nature they threatened neither the loss of life or of limb, were, however, sufficiently dreadful to a well-dressed lady.
b) Of or pertaining to the inelastic, non-brittle, deformation of a material.
Frustrated by a globalized music industry force-feeding them plastic pop music, hackers, remixers, and activists began to mobilize...
Wikipedia foundation.