cyanidation
/ˌsiːənaɪˈdeɪʃən/Definitions
1. noun
the process of using cyanide to extract gold or other metals from ore
“The mining company used cyanidation to extract gold from the ore.”
2. noun
the use of cyanide as a poison, especially in relation to its use in lethal injections
“The debate surrounding cyanidation in capital punishment has been ongoing for years.”