Definition of hard plastic in English:

hard plastic

noun

  • Originally: a substance that started in a plastic (mouldable) state and was subsequently made hard or rigid (now disused). In later use: a plastic that is hard and rigid, such as PVC, ABS, and polymerized methyl methacrylate; plastic of this kind.

Origin

Late 19th century; earliest use found in U.S. Patents. From hard + plastic.

Pronunciation

hard plastic

/ˌhɑːd ˈplastɪk/