fireproof definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
that does not burn or is not easily destroyed by fire
to make fireproof
fireproof definition by American Heritage Dictionary
Impervious or resistant to damage by fire.transitive verb fire·proofed, fire·proof·ing, fire·proofs
To make fireproof.