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ethenyl 乙烯基; 次乙基 乙烯基; 次乙基 Ethenyl \Eth"e*nyl\, n. [Ethene -yl.] (Chem.)
(a) A trivalent hydrocarbon radical, {CH3.C}. (b) A univalent hydrocarbon radical of the ethylene series, {CH2:CH}; -- called also {vinyl}. See {Vinyl}. [1913 Webster]
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