afterdamp

[ af-ter-damp, ahf- ]
/ ˈæf tərˌdæmp, ˈɑf- /

noun

an irrespirable mixture of gases, consisting chiefly of carbon dioxide and nitrogen, left in a mine after an explosion or fire.

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Origin of afterdamp

First recorded in 1855–60; after + damp
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for afterdamp

afterdamp
/ (ˈɑːftəˌdæmp) /

noun

a poisonous mixture of gases containing carbon dioxide, carbon monoxide, and nitrogen formed after the explosion of firedamp in coal minesSee also whitedamp
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