Chemistry. Any of the series of unsaturated hydrocarbons containing a double bond and having the general formula CnH2n. Also called alkene.
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| 释义 | the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes (33) olefin1860 Chemistry. Any of the series of unsaturated hydrocarbons containing a double bond and having the general formula CnH2n. Also called alkene. alkylene1886 An alkene or olefin; a divalent radical or group derived from an alkene by the loss of two hydrogen atoms. Chiefly attributive or as a formative… alkene1899 Any of the series of unsaturated hydrocarbons containing a single double bond and having the general formula CnH2n (= olefin, n. 1); (more widely)… Subcategories:— straight-chained, by number of carbon atoms (25) — branched-chain (3) — tetrachlorothene (2) |
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