from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An arsenic compound or a mixture of arsenic compounds resulting from the smelting of iron, cobalt, nickel, and copper ores.

from The Century Dictionary.

  • noun A compound, consisting chiefly of arsenic and iron, but often containing nickel and cobalt, obtained in smelting the complicated lead ores occurriug near Freiberg in Saxony, and in other localities.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (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.
  • noun (Metal.) Impure metallic arsenides, principally of iron, produced in copper and lead smelting.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A mixed arsenide of iron (and cobalt, nickel, and copper) produced during the smelting of lead


from The American Heritage® Dictionary of the English Language, 4th Edition

[German 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.]


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