fire resisting

/ˈfaɪər rɪˌzɪstɪŋ/
adjective
  1. Designed or treated to resist fire and slow its spread; fire-resistant.
    • They installed fire-resisting doors in the hallway to stop flames from spreading.
    • Fire-resisting paint can help protect wooden furniture from catching fire.
    • The new office building uses fire-resisting glass in all its windows.
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