noun
hard glass; hardened glass
Refers to glass that has been physically or chemically strengthened to resist impact, scratches, or thermal stress. Common in industrial and consumer product contexts.
このスマートフォンは硬質ガラスを採用している。
This smartphone uses hardened glass.
硬質ガラスは通常のガラスより傷がつきにくい。
Hard glass is more scratch-resistant than ordinary glass.