出典:Wiktionary
出典:『Wiktionary』 (2025/07/21 18:35 UTC 版)
From fire + damp with 'damp' not in the usual sense of 'moist' but old German, modern Dutch, Danish 'damp' as steam or vapour, hence a gas liable to catch fire.
firedamp (usually uncountable, plural firedamps)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/20 12:44 UTC 版)
Firedamp is a flammable gas found in coal mines. It is the name given to a number of flammable gases, especially methane. It is particularly commonly found in areas where the coal is bituminous. The gas accumulates in pockets in the coal and adjacent strata, and when they are penetrated, the release can trigger explosions.