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The Collaborative International Dictionary

Cyanogen \Cy*an"o*gen\ (s?-?n"?-j?n), n. [Gr. ky`anos a dark blue substance + -gen: cf. F. cyanog[`e]ne. So called because it produced blue dyes.] (Chem.) A colorless, inflammable, poisonous gas, C2N2, with a peach-blossom odor, so called from its tendency to form blue compounds; obtained by heating ammonium oxalate, mercuric cyanide, etc. It is obtained in combination, forming an alkaline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.

Note: Cyanogen is found in the commercial substances, potassium cyanide, or prussiate of potash, yellow prussiate of potash, Prussian blue, Turnbull's blue, prussic acid, etc.


sym. (context element symbol English) Symbol for copernicium.


CN, cn or other variants may refer to:

Usage examples of "cn".

The Mossad salted the site of the CNIM bomb blast with 'clues' followed up with anonymous phone calls to police —.

They found that as death approaches and anoxia sets in there's massive presynaptic activity in the CNS: the dying axons release huge amounts of chemically encoded data into the cerebro-spinal fluid.

Along the synapses of my brain, microscopic machines are implanting cultured oligodendrocytes, reversing the myelin-sheath breakdown along my neural pathways, disassembling the creaking old wetware threaded through my brain and CNS, grafting pluripotent stem cells into a collagen base to replace nerve tissue lost to injury and to scarring.