back-draft

back·draft

[bak-draft, -drahft]
noun
an explosive surge in a fire produced by the sudden mixing of air with other combustible gases.

Origin:
1815–25; back2 + draft

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Collins
World English Dictionary
backdraught or (US), (Canadian) backdraft (ˈbækˌdrɑːft) [Click for IPA pronunciation guide]
 
n
1.  a reverse movement of air, gas, or liquid
2.  an explosion that occurs when air reaches a fire that has used up all the available oxygen, often occurring when a door is opened to the room containing the fire
 
backdraft or (US), (Canadian) backdraft
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Back-draft is always a great word to know.
So is doohickey. Does it mean:
the offspring of a zebra and a donkey.
a gadget; dingus; thingumbob.
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