firedamp

[fahyuh r-damp]
noun Mining.
  1. a combustible gas consisting chiefly of methane, formed especially in coal mines, and dangerously explosive when mixed with certain proportions of atmospheric air.
  2. the explosive mixture itself.

Origin of firedamp

First recorded in 1670–80; fire + damp
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of firedamp


British Dictionary definitions for firedamp

firedamp

noun
  1. a mixture of hydrocarbons, chiefly methane, formed in coal mines. It forms explosive mixtures with airSee also afterdamp
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