marsh gas
noun
a gaseous decomposition product of organic matter, consisting primarily of methane.
Also called
swamp gas.
Origin of marsh gas
An Americanism dating back to 1775–85
Words nearby marsh gas
marsh cress,
marsh deer,
marsh elder,
marsh fern,
marsh fever,
marsh gas,
marsh grass,
marsh harrier,
marsh hawk,
marsh hen,
marsh mallow
Example sentences from the Web for marsh gas
Many varieties of coal give off a gas known as marsh-gas or fire-damp.
The Wonder Book of Knowledge |Various
British Dictionary definitions for marsh gas
marsh gas
noun
a hydrocarbon gas largely composed of methane formed when organic material decays in the absence of air
Medical definitions for marsh gas
marsh gas
n.
methane