[ sahy-an-uh-juh n, -jen ]
/ saɪˈæn ə dʒən, -ˌdʒɛn /


a colorless, poisonous, flammable, water-soluble gas, C2N2, having an almondlike odor: used chiefly in organic synthesis.

Origin of cyanogen

First recorded in 1820–30; cyano-1 + -gen Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for cyanogen

British Dictionary definitions for cyanogen

/ (saɪˈænədʒɪn) /


an extremely poisonous colourless flammable gas with an almond-like odour: has been used in chemical warfare. Formula: (CN) 2

Word Origin for cyanogen

C19: from French cyanogène; see cyano-, -gen; so named because it is one of the constituents of Prussian blue
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012