thermoplastic
definition: having the property of softening or fusing when heated and of hardening and becoming rigid again when cooled
example: thermoplastic materials can be remelted and cooled time after time without undergoing any appreciable chemical change
speech part: adjective
synonyms:
definition: a material that softens when heated and hardens again when cooled
example:
speech part: noun
synonyms:
thermoplastic resin