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Noun edit

dicyanomethylene (usually uncountable, plural dicyanomethylenes)

  1. (organic chemistry, especially in combination) The divalent radical (N≡C)2C=
    • 2002, Dietrich Döppa, “Dicyanomethylene Compounds as Cyanation Reagents”, in Z.Naturforsch, number 57b, pages 460–470: