af·ter·damp

[af-ter-damp, ahf-]
noun
an irrespirable mixture of gases, consisting chiefly of carbon dioxide and nitrogen, left in a mine after an explosion or fire.

Origin:
1855–60; after + damp

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World English Dictionary
afterdamp (ˈɑːftəˌdæmp) [Click for IPA pronunciation guide]
 
n
See also whitedamp a poisonous mixture of gases containing carbon dioxide, carbon monoxide, and nitrogen formed after the explosion of firedamp in coal mines

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Afterdamp is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a chattering or flighty, light-headed person.
Example sentences
Exhausted volunteers found conditions in the mines almost unbearable, heat was intense, and afterdamp caused headaches and nausea.
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