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Word: backdraft
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Meaning:
Noun:
- firefighting An extreme fire behavior phenomena involving ignition of products of combustion (such as carbon monoxide) and pyrolysis products upon introduction of oxygen to a compartment. In this phenomena the fuel generally is at a high temperature (above 600 degrees C), but combustion is limited by a lack of oxygen. Introduction of atmospheric oxygen results in explosive combustion. Backdraft is often incorrectly referred to as a smoke explosion which is a completely different extreme fire behavior phenomenon.
Source: Wiktionary
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