Liberal Dictionary English Dictionary
1926, from German Zyklon, commercial name of a type of hydrogen cyanide, of unknown etymology, but it is the usual German form of the word cyclone. Originally used as a pesticide and fumigant.
Zyklon
1926, from German Zyklon, commercial name of a type of hydrogen cyanide, of unknown etymology, but it is the usual German form of the word cyclone. Originally used as a pesticide and fumigant.