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单词 methane
释义

Definition of methane in English:

methane

noun ˈmiːθeɪnˈmɛθeɪnˈmɛθeɪn
mass nounChemistry
  • A colourless, odourless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.

    〔化〕甲烷,沼气

    Chemical formula: CH₄

    Example sentencesExamples
    • Food waste is turned into hydrogen, methane and carbon monoxide by the heat of the exhaust.
    • Other trace gases include methane, nitrous oxide, carbon monoxide, sulphur dioxide, and ozone.
    • For example, the alcohol derivative of methane is methanol and of ethane is ethanol.
    • Natural gas is mostly methane with small quantities of ethane and other gases mixed in.
    • Will it in the meantime be made from hydrocarbons like methane and natural gas?

Origin

Mid 19th century: from methyl + -ane2.

Rhymes

ethane

Definition of methane in US English:

methane

nounˈmeTHānˈmɛθeɪn
Chemistry
  • A colorless, odorless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.

    〔化〕甲烷,沼气

    Chemical formula: CH₄

    Example sentencesExamples
    • For example, the alcohol derivative of methane is methanol and of ethane is ethanol.
    • Will it in the meantime be made from hydrocarbons like methane and natural gas?
    • Food waste is turned into hydrogen, methane and carbon monoxide by the heat of the exhaust.
    • Other trace gases include methane, nitrous oxide, carbon monoxide, sulphur dioxide, and ozone.
    • Natural gas is mostly methane with small quantities of ethane and other gases mixed in.

Origin

Mid 19th century: from methyl + -ane.

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更新时间:2025/6/20 6:18:56