Thermoplastic - Capable
of being repeatedly softened by heat and hardened by
cooling (n.) - A material that will repeatedly soften
when heated and harden when cooled. Typical of the thermoplastics
family are the styrene polymers and copolymers, acrylics,
cellulosics, polyethylenes, vinyls, nylons, and the
various fluorocarbons materials.
