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单词 methane
释义

WordReference Random House Learner's Dictionary of American English © 2024
meth•ane /ˈmɛθeɪn/USA pronunciation   n. [uncountable]
  1. Chemistrya colorless, odorless gas that can be burned, the main part of marsh gas.

WordReference Random House Unabridged Dictionary of American English © 2024
meth•ane  (meth′ān; Brit. mē′thān),USA pronunciation n. [Chem.]
  1. Chemistrya colorless, odorless, flammable gas, CH4, 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.
  • meth- + -ane 1865–70

Collins Concise English Dictionary © HarperCollins Publishers::
methane /ˈmiːθeɪn/ n
  1. a colourless odourless flammable gas, the simplest alkane and the main constituent of natural gas: used as a fuel. Formula: CH4
Etymology: 19th Century: from meth( yl) + -ane
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