from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An odorless, colorless, flammable gas, CH4, the major constituent of natural gas, that is used as a fuel and is an important source of hydrogen and a wide variety of organic compounds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The simplest aliphatic hydrocarbon, CH4, being a constituent of natural gas.
- n. Any of very many derivatives of methane.
from the GNU version of the Collaborative International Dictionary of English
- n. A light, colorless, gaseous, inflammable hydrocarbon, CH4; marsh gas. It is the simplest of the aliphatic hydrocarbons. See Marsh gas, under gas.
from The Century Dictionary and Cyclopedia
- n. A hydrocarbon (CH4) belonging to the paraffin series, a colorless, odorless gas which may be reduced to a liquid by extreme pressure and cold.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a colorless odorless gas used as a fuel
From methyl + -ane. (Wiktionary)