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Definition of Firedamp
1. Noun. A mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air.
Generic synonyms: Gas
Definition of Firedamp
1. Noun. (mining) An inflammable gas (mostly methane) found in coal mines; forms an explosive mixture with air. ¹
¹ Source: wiktionary.com
Definition of Firedamp
1. a combustible gas [n -S]
Medical Definition of Firedamp
1. Methane or other light hydrocarbons forming an explosive mixture when mixed with 7 or 8 volumes of air. (05 Mar 2000)