What is (a) A trivalent hydrocarbon radical, CH3.C. (b) A univalent hydrocarbon radical of the ethylene series, CH2:CH; - - called also vinyl. See Vinyl called?

ethenyl — (a) A trivalent hydrocarbon radical, CH3.C. (b) A univalent hydrocarbon radical of the ethylene series, CH2:CH; - - called also vinyl. See Vinyl. (Webster's 1913.)

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