n. (Chem.) An orange-yellow substance, produced by the action of chlorine or boiling dilute nitric acid and sulphocyanate of potassium; -- called also pseudosulphocyanogen, perthiocyanogen, and formerly sulphocyanogen. [ 1913 Webster ]

n. (Chem.) See Persulphocyanogen. [ Obs. ] [ 1913 Webster ]