Found 2 items, similar to firedamp.
English → English (WordNet) Definition: firedamp firedamp n : a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
English → English (gcide) Definition: firedamp 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]