thermoplastic resin

any synthetic material, such as polyethylene, that can be molded when hot but becomes hard on cooling

Japanese Meaning

加熱すると柔らかくなり、冷却すると固まる性質を持つ、ポリエチレンなどを含む人工合成樹脂。

The engineer chose a thermoplastic resin for the prototype because it could be reshaped quickly by reheating.

技術者は試作モデルに熱可塑性樹脂を選んだ。加熱すれば素早く再成形できるためだ。

Sense（1）

any synthetic material, such as polyethylene, that can be molded when hot but becomes hard on cooling

thermoplastic resins

（ plural ）