ferrous oxide

noun

, Chemistry.

1. a black powder, FeO, insoluble in water, soluble in acid.

ferrous oxide

1. A black powder used to make steel, green heat-absorbing glass, and enamels. Chemical formula: FeO.

Word History and Origins

Origin of ferrous oxide¹

First recorded in 1870–75

Example Sentences

Amused and enchanted, I named him "Ferrous" for the chemical name of rust, hydrated ferrous oxide.

From New York Times

Lawrence Weiner’s “Cadmium & Mud & Titanium & Lead & Ferrous Oxide & So On …” was first displayed as part of his solo exhibition “Displacement,” at Dia Center for the Arts in New York City in 1991.

From New York Times

Staurolite, stawr′ō-līt, n. a silicate of alumina with ferrous oxide, magnesia, and water, crystallising in trimetric forms, common as twinned cruciform crystals in certain states.—adj.

From Project Gutenberg

Ferrous oxide produces an olive green or a pale blue according to the glass with which it is mixed.

From Project Gutenberg

Manganese dioxide not only acts as a source of oxygen, but develops a pink tint in the glass, which is complementary to and neutralizes the green colour due to ferrous oxide.

From Project Gutenberg