zinc-airhttp://www.oed.com/dictionary/zinc-air_adj%3Ftab%3Dmeaning_and_usezinc-air, adj.
First published 1986; not fully revised

zinc-airadjective

  1. 1970–
    Applied to a type of primary cell employing a zinc anode, a porous carbon cathode able to utilize atmospheric oxygen, and an alkaline electrolyte.
    1. 1970
      These portable zinc-air batteries are being used in man~pack transceivers, night vision devices, and space satellite communications.
      C. L. Mantell, Batteries & Energy Systems vi. 63
    2. 1978
      The Gould zinc-air button cell is..used in hearing aids and other devices which require a moderately high current.
      Journal Electrochem. Society vol. 125 333c/2

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

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