Meaning & use

thermoplastic

noun·Advanced

A plastic material that softens when heated and hardens again as it cools, allowing it to be reshaped repeatedly.

See it in a sentence

The bottle was made from a thermoplastic that could be melted down and recycled.

Manufacturers chose a thermoplastic for the case because it could be molded into complex shapes.

A note on using this word

Contrasts with 'thermoset' plastics, which harden permanently once cured and cannot be remelted.

Words with a similar meaning

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Another way to use it

2. adjective

Able to be softened by heat and hardened by cooling repeatedly without a permanent chemical change.

The clip is made of a thermoplastic material that bends when warmed.

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