oxide UK /ˈɒksaɪd/US /ˈɑksaɪd/noun 1forms 1phrases 1 noun1 •A binary chemical compound of oxygen with another chemical element.Most metals, when subjected to heat until they become melted, combine with oxygen of the atmosphere, and form what are called oxides. — 1846 formsoxides Phrases with oxide black oxideAny of several coatings for steels or copper; some are oxides (mainly iron(II,III) oxide), some are nitrites or nitrates, and some are selenides; all are black; the main purposes are the antireflective and cosmetic effects; the anticorrosion effects are small.
