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)