fireproof
adjective /ˈfaɪəpruːf/
/ˈfaɪərpruːf/
- able to resist great heat without burning or being badly damaged
- a fireproof door
- a fireproof dish (= that can be heated in an oven)
- Put the mixture in a fireproof dish and bake for 45 minutes.
- Valuable records and documents should always be kept in a fireproof safe.