1. 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"

1. A material that softens when heated and hardens again when cooled
   "PVC pipes are made from a common thermoplastic";
   - thermoplastic resin

Derived forms: thermoplastics

Type of: plastic

Antonym: thermoset

Encyclopedia: Thermoplastic