zinc-foilhttp://www.oed.com/dictionary/zinc-foil_n%3Ftab%3Dmeaning_and_usezinc-foil, n.
First published 1921; not fully revised

zinc-foilnoun

  1. 1851–
    Thin sheet zinc.
    1. 1851
      To obtain zinc-plate, or zinc-foil, the metal cast in a tabular form is heated in a boiling solution of common salt, and then passed between rollers.
      H. Watts, translation of L. Gmelin, Hand-book of Chemistry vol. V. 4

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

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