firedamp
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fire·damp
(fīr′dămp′)n.
1. A combustible gas, chiefly methane, often occurring in mines in association with bituminous coal.
2. The explosive mixture of firedamp and air.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
firedamp
(ˈfaɪəˌdæmp)n
(Mining & Quarrying) a mixture of hydrocarbons, chiefly methane, formed in coal mines. It forms explosive mixtures with air. See also afterdamp
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fire•damp
(ˈfaɪərˌdæmp)n.
a combustible gas dangerously explosive when mixed with atmospheric air.
[1670–80]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. | firedamp - a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
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