• (n.) Niccolite.
Coinage alloy composed of copper and nickel in varying amounts.
Cop'per-nick`el noun (Min.) Niccolite. 
Copper-nickel or Kupfernickel is an ore of nickel, an alloy of nickel and arsenic, containing about 60 percent of the former and 40 percent of the latter, of a copper colour it is found in the mines of Westphalia.
Covers copper alloys with less than 50% nickel.
Covers copper alloys with less than 50% of nickel.