firedamp
(Inglês)
A flammable gas (mostly methane) found in coal mines; forms an explosive mixture with air.
Etimologia (Inglês)
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.
Grisu
grisou
Grubengas
grisou
grisú
mijngas
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