reinforced glass
nounUK /ˌriːɪnˈfɔːst ɡlɑːs/
US /ˌriːɪnˈfɔːrst ɡlæs/
Glass made extra strong so it does not break easily.
The school windows are made of reinforced glass to keep everyone safe.
RELATED WORDS
OTHER MEANINGS
2. Glass with wire mesh inside that holds it together if it cracks.
The old factory had reinforced glass with wire running through it.
3. A strong glass used in car windows and doors.
The car's reinforced glass cracked but did not shatter.
4. Glass treated with heat or chemicals to make it tougher than normal glass.
The phone screen is made of reinforced glass to survive drops.