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Meaning of nickelic oxide

nickel'ic ox'ide

Pronunciation: [key]
— Chem. Chem.
  1. a gray-black, water-insoluble powder, NiO, which, at 600°C, decomposes to nickel oxide: used chiefly in storage batteries as an oxidizing agent. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.