cuprous

[ kyoo-pruh s, koo- ]

/ ˈkyu prəs, ˈku- /

containing copper in the univalent state, as cuprous oxide, Cu2O.

Origin of cuprous

First recorded in 1660–70; cupr- + -ous

By treating cuprous oxide with different acids a number of cuprous salts can be made.

An Elementary Study of Chemistry |William McPherson
Since they are so much more familiar than the cuprous salts, they are frequently called merely copper salts.

An Elementary Study of Chemistry |William McPherson
The chemical reaction taking place is the reduction of copper sulphate to cuprous oxide.

Dietetics for Nurses |Fairfax T. Proudfit
A and B give no evidence of sugar, while C reduces the Fehling, giving a yellow or red deposit of cuprous oxide.

A Practical Physiology |Albert F. Blaisdell

Firstly, by no means all bronzes which have been dug up, even though from the same excavation, show the layer of cuprous oxide.

The Preservation of Antiquities |Friedrich Rathgen

cuprous

/ (ˈkjuːprəs) /

of or containing copper in the monovalent state

cuprous

[ kōō′prəs, kyōō′- ]

Containing copper, especially copper with a valence of 1. Compare cupric.