| 释义 | 
		copper sulfide noun  : any sulfide of copper: as  a.  : the black crystalline sulfide Cu2S occurring naturally as chalcocite — called also cuprous sulfide  b.  : the black, bluish black, or brownish black crystalline sulfide CuS occurring naturally as covellite and precipitated by hydrogen sulfide from a solution of a cupric salt — called also cupric sulfide |