What is a small coin made of or containing nickel; esp., a five-cent piece. [Colloq. U.S.] Nickel silver, an alloy of nickel, copper, and zinc; -- usually called german silver; called also argentan called?

nickel — A small coin made of or containing nickel; esp., a five-cent piece. [Colloq. U.S.] Nickel silver, an alloy of nickel, copper, and zinc; -- usually called german silver; called also argentan. (Webster's 1913.)