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methane    音标拼音: [m'ɛθ,en]
n. 甲烷,沼气

甲烷,沼气

methane
n 1: a colorless odorless gas used as a fuel

Methane \Meth"ane\, n. [See {Methal}.] (Chem.)
A light, colorless, gaseous, inflammable hydrocarbon, {CH4};
marsh gas. It is the simplest of the aliphatic hydrocarbons.
See {Marsh gas}, under {Gas}.
[1913 Webster]

{Methane series} (Chem.), a series of saturated hydrocarbons,
of which methane is the first member and type, and
(because of their general chemical inertness and
indifference) called also the {paraffin (little affinity)
series}. The lightest members are gases, as methane,
ethane; intermediate members are liquids, as hexane,
heptane, etc. (found in benzine, kerosene, etc.); while
the highest members are white, waxy, or fatty solids, as
paraffin proper.
[1913 Webster]


methanogen \methanogen\ n.
A type of archaebacteria found in anaerobic environments such
as animal intestinal tracts or sediments or sewage, and
capable of producing {methane}; a source of natural gas.
[WordNet 1.5]

41 Moby Thesaurus words for "methane":
alcohol, benzine, briquette, burnable, butane, carbon, charcoal,
coal, coke, combustible, dope, ethane, ethanol, fireball, firing,
flammable, flammable material, fuel, fuel additive, fuel dope, gas,
gas carbon, gasoline, heptane, hexane, inflammable,
inflammable material, isooctane, jet fuel, kerosene, methanol,
natural gas, octane, oil, paraffin, peat, pentane, propane,
propellant, rocket fuel, turf


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  • Methane - Wikipedia
    Methane is an organic compound, and among the simplest of organic compounds Methane is also a hydrocarbon Naturally occurring methane is found both below ground and under the seafloor and is formed by both geological and biological processes
  • Methane | Definition, Properties, Uses, Facts | Britannica
    Methane, colorless, odorless gas that occurs abundantly in nature and as a product of certain human activities Methane is the simplest member of the paraffin series of hydrocarbons and is among the most potent of the greenhouse gases
  • Methane - Climate Change: Vital Signs of the Planet
    Methane comes from both natural sources and human activities An estimated 60% of today’s methane emissions are the result of human activities The largest sources of methane are agriculture, fossil fuels, and decomposition of landfill waste
  • Importance of Methane - US EPA
    Methane (CH 4) is a hydrocarbon that is a primary component of natural gas Methane is also a greenhouse gas (GHG), so its presence in the atmosphere affects the earth’s temperature and climate system Methane is emitted from a variety of anthropogenic (human-influenced) and natural sources
  • What is methane and why is it a safety concern?
    Under the right conditions, methane gas can migrate into water wells along with the groundwater High concentrations of methane in water wells can accumulate in confined spaces and act as an asphyxiant or become flammable
  • Methane facts and information | National Geographic
    Cows and bogs release methane into the atmosphere, but it's by far mostly human activity that's driving up levels of this destructive greenhouse gas Some lakes can "burp" methane naturally
  • Methane (CH₄) - Definition, Structure, Preparation, Uses, Benefits . . .
    Methane(CH₄) is a colorless, odorless gas that plays a crucial role in both the environment and the energy sector It is the simplest form of a hydrocarbon, consisting of one carbon atom bonded to four hydrogen atoms ( CH₄ )
  • Methane - Encyclopedia. com
    methane (CH 4) Colourless, odourless hydrocarbon, the simplest alkane (paraffin) It is the chief constituent of natural gas, from which it is obtained It is produced by decomposing organic matter, such as in marshes, which led to its original name of ‘marsh gas’
  • Facts about Methane - UNEP - UN Environment Programme
    Methane (CH4), the primary component of natural gas, is responsible for approximately a third of the warming we are experiencing today
  • FACT SHEET: METHANE: ANSWERS TO FAQS - US EPA
    As methane is slightly soluble (can mix with water), it can be carried by contaminated groundwater and enter homes through private water wells used for drinking and or food





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