[f. COCK sb.1] A soft alloy consisting of two parts of copper and one of lead, used esp. for cocks or taps, whence the name.
1822. Imison, Sci. & Art, II. 228. Cock metal is made with copper alloyed with zinc and lead.
1864. Athenæum, No. 1937. 788/1. Casts in cock-metal.
