Etymology
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thermoplastic (adj.)

1870, see thermo- + plastic (adj.). As a noun from 1929.

updated on January 29, 2014

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Definitions of thermoplastic from WordNet
1
thermoplastic (n.)
a material that softens when heated and hardens again when cooled;
Synonyms: thermoplastic resin
2
thermoplastic (adj.)
having the property of softening or fusing when heated and of hardening and becoming rigid again when cooled;
thermoplastic materials can be remelted and cooled time after time without undergoing any appreciable chemical change
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.