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fire door

 - 2 dictionary results

fire door

–noun
1. a door through which a boiler or furnace is fired or through which the fire is inspected.
2. a fireproof or fire-resistant door in a building, intended to isolate an area from fire.

Origin:
1830–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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fire door  
n.  A door made of fire-resistant material that can be closed to prevent the spread of fire.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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