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See also: Cyanide
- (chemistry, countable) Any compound containing the -C≡N group or the CN− anion.
- (uncountable) Sodium or potassium cyanide, used in the extraction of gold and silver or as a poison.
- Jul 1988, Michael A. Silva, “Cyanide Heap Leaching in California”, in California Geology, volume 41, number 7, page 147:
- Two doctors and a metallurgist from Scotland patented a process for dissolving gold with cyanide in 1887 and patented the recovery of gold from solution using finely divided zinc (zinc precipitation) the following year. […]
The first commercial processing plant to use cyanide in the milling circuit was constructed at the Crown mine at Karangahake, New Zealand in 1889.
- 2000, Sean Dolan, Everything You Need to Know About Cults, New York: The Rosen Publishing Groups, Inc., →ISBN, page 15:
- The vast majority of the victims, on Jones’s orders, had drunk a fruit punch mixture laced with cyanide, a deadly poison. Adults had fed the poisoned liquid to the children, including infants.
- (uncountable) Hydrogen cyanide, or cyanide gas, a poisonous gas.
chemistry: any compound containing the CN group
potassium cyanide — see potassium cyanide
hydrogen cyanide — see hydrogen cyanide
cyanide n (uncountable)
- cyanide (C≡N-based compound)