Dictionary
meth•ane
Pronunciation: (meth'ān; Brit.mē'thān), [key]—
n. Chem.
a colorless, odorless, flammable gas, CH
4, the main constituent of marsh gas and the firedamp of coal mines, obtained commercially from natural gas: the first member of the methane, or alkane, series of hydrocarbons.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.