Wiktionary
cuprous oxide
n. An old term for copper(I) oxide, chemical formula Cu2O. Used as a pigment, fungicide and antifouling ingredient.
Usage examples of "cuprous oxide".
Sadie now knew the spell which would retard permeation and blistering on a cuprous oxide mix applied to whitecast iron, and had —.
Sadie now knew the spell which would retard permeation and blistering on a cuprous oxide mix applied to whitecast iron, and had look, see she held out a hand across the foam of her dress, indelible blue half moons of cobalt under her fingernails.