%speiss%

n. [ Cf. G. speise food, mixed metal for bells, etc. ] 1. (Metal.) A regulus consisting essentially of nickel, obtained as a residue in fusing cobalt and nickel ores with silica and sodium carbonate to make smalt. [ 1913 Webster ]

2. (Metal.) Impure metallic arsenides, principally of iron, produced in copper and lead smelting. [ Webster 1913 Suppl. ]