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Zyklon B Line breaks: Zy¦klon B
Pronunciation: /ˈzʌɪklɒn/

Definition of Zyklon B in English:


[mass noun]
Hydrogen cyanide adsorbed on or released from a carrier in the form of small tablets, used as an insecticidal fumigant and by the Nazis as a lethal gas.
Example sentences
  • The Nazis used Zyklon B, a dreaded chemical, to gas prisoners at Auschwitz.
  • While the commanding officer was away, a guard at Auschwitz used the delousing chemical Zyklon B on some prisoners.
  • In autumn 1941, the first gassing experiments in Auschwitz itself take place, using Zyklon B, a powerful disinfectant used to delouse clothes.


1930s: from German, of unknown origin.

Definition of Zyklon B in:
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