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a colorless odorless gas used as a fuel

a colorless odorless gas used as a fuel

Marsh-gas, CH4; an odorless gas produced by the decomposition of organic matter; it is explosive when mixed with seven or eight volumes of air, constituting then the fire-damp in coal-mines.

Marsh-gas; the saturated hydrocarbon, CH4, which forms the first member of the paraffin series. A colorless, odorless gas produced in the decomposition of organic matter (especially cellulose) by a peculiar fermentation (see Fermentation), and occurring in marshes, etc. and in the intestines.

Marsh gas, CH4, from decayed organic matter.

Syn.: marsh gas. A colorless, odorless, inflammable gas, CH4. All the aliphatic compounds are considered as derivatives of m. It is found in the intestine during putrefaction.