zinc-furnacehttp://www.oed.com/dictionary/zinc-furnace_n%3Ftab%3Dmeaning_and_usezinc furnace, n.
First published 1921; not fully revised

zinc furnacenoun

  1. 1878–
    1. 1878
      Zinc Furnace for the Distillation of Zinc combined with Lead.
      R. Hunt & F. W. Rudler, Ure's Dictionary of Arts (ed. 7) vol. IV. 1006

Originally published as part of the entry for zinc, n.

zinc, n. was first published in 1921; not fully revised.