Definition of methane in English:


Line breaks: me|thane
Pronunciation: /ˈmiːθeɪn
, ˈmɛθeɪn


[mass noun] Chemistry
  • A colourless, odourless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.
    • Chemical formula: CH4
    More example sentences
    • Other trace gases include methane, nitrous oxide, carbon monoxide, sulphur dioxide, and ozone.
    • Will it in the meantime be made from hydrocarbons like methane and natural gas?
    • For example, the alcohol derivative of methane is methanol and of ethane is ethanol.


mid 19th century: from methyl + -ane2.

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