'firedamp' definitions:
Definition of 'firedamp'
(from WordNet)
noun
A mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
Definition of 'firedamp'
From: GCIDE
- firedamp \firedamp\ n. a mixture of gases (mostly methane) that forms in coal mines and becomes explosive when mixed with air. It is a source of serious hazard in coal mining operations. [WordNet 1.5 +PJC]