单词	calcium cyanide
释义	calcium cyanide noun : a compound Ca(CN)2 that gives off hydrogen cyanide on exposure to air, is made usually in impure black or gray flakes, powder, or cast blocks by heating crude calcium cyanamide in the presence of salt in an electric furnace, and is used chiefly as an insecticide and rodenticide and in making hydrogen cyanide and ferrocyanides called also black cyanide Word History First Known Use circa 1893, in the meaning defined above
随便看	frozenly frozenness frozennesses FRS frs frt fruc fructans fructed fructescence fructescent fructi- fructidores fructidors fructiferous fructiferously fructification fructifications fructificative fructified fructifier fructifies fructiform fructify fructifying

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