tempered glass

noun
UK /ˈtɛmpəd ɡlɑːs/
US /ˈtɛmpərd ɡlæs/

Tempered glass is a special strong glass that breaks into tiny safe pieces instead of sharp shards.

The phone screen is made of tempered glass so it won't crack easily.


OTHER MEANINGS

2. Glass that has been heated and quickly cooled to make it stronger.

The shower door is made of tempered glass for safety.

3. A protective screen layer used on phones and tablets.

She put a tempered glass protector on her new phone.

4. Glass used in car windows that shatters into small pieces.

The car's side window is tempered glass.