English

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Etymology

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From flame +‎ -proof.

Adjective

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flameproof (comparative more flameproof, superlative most flameproof)

  1. Resistant to catching fire.
    • 1952 December, “Brighton Line Resignalling, Southern Region”, in Railway Magazine, page 830:
      One hundred and fifty miles of flameproof wire have been used in the signalboxes and relay rooms.

Synonyms

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Verb

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flameproof (third-person singular simple present flameproofs, present participle flameproofing, simple past and past participle flameproofed)

  1. (transitive) To make flameproof.
    • 1960 September, M. J. Wilson, “Harlow Town station opened”, in Trains Illustrated, page 542:
      Structural timber in the roofs throughout the station has been flameproofed.

References

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