Updated September 13, 2013.
Written or reviewed by a board-certified physician. See About.com's Medical Review Board.
Definition:
A poisonous, colorless gas that is present in cigarette smoke. Under the name of Zyklon B, hydrogen cyanide was used as a genocidal agent during World War II.
See also:
Source:
Facts About Cyanide. 27 January, 2004. Centers for Disease Control.
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