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fire door

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noun

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

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Origin of fire door

First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use fire door in a sentence

British Dictionary definitions for fire door

fire door

noun

a door made of noncombustible material, the purpose of which is to prevent a fire from spreading within a building
a similar door, leading to the outside of a building, that can be easily opened from inside; emergency exit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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