firedamp
noun
fire·damp ˈfī(-ə)r-ˌdamp 
: a combustible mine gas that consists chiefly of methane
also : the explosive mixture of this gas with air
Word History
First Known Use
1662, in the meaning defined above
Medical Definition
firedamp
noun
fire·damp -ˌdamp
: a combustible mine gas that consists chiefly of methane
also : the explosive mixture of this gas with air compare black damp
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