Meaning of nickel oxide

nick'el ox'ide

Pronunciation: [key]
— Chem. Chem.
  1. a green, water-insoluble powder, NiO, used chiefly in the manufacture of nickel salts and in green pigments for ceramic paints. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.