a mixture of metallic arsenides produced during the smelting of copper, iron, and certain other ores
Origin of speissGerman speise, amalgam, literally , food ; from Medieval Latin spesa, cost, expense, earlier spensa ; from Classical Latin expensa (pecunia), (money) spent ; from past participle of expendere, to expend
An arsenic compound or a mixture of arsenic compounds resulting from the smelting of iron, cobalt, nickel, and copper ores.
Origin of speissGerman Speise, food, speiss, from Middle High German spīse, food, from Old High German spīsa, probably from Medieval Latin spēnsa, storehouse, or spēsa, provisions, both from Latin expēnsa (pecūnia), (money) paid out; see expense.
(countable and uncountable, plural speisses)