oxide

noun

ox·​ide ˈäk-ˌsīd How to pronounce oxide (audio)
: a binary compound of oxygen with a more electropositive element or group
oxidic adjective

Examples of oxide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Nail technicians in salons across the continent need to dispose of polishes containing trimethylbenzoyl diphenylphosphine oxide, or TPO, and switch to alternatives. Lauren Jarvis-Gibson, Miami Herald, 26 June 2026 In order to meet this challenge, Bassil used carbon nanotubes that form layers one one-hundredth the thickness of a human hair (instead of metal oxides that need to heat up) as the conduction material. Shirl Leigh june 26, New Atlas, 26 June 2026 To remove hard water stains in toilet bowls and sinks, look for products that contain acids and oxides that will remove the mineral buildup. Mary Marlowe Leverette, Southern Living, 23 June 2026 Mineral sunscreens such as zinc or titanium oxide ward off the Sun’s rays by forming a protective film that also absorbs most UV light, but reflects some of it. Guy German, Fortune, 21 June 2026 See All Example Sentences for oxide

Word History

Etymology

French oxide, oxyde, from ox- (from oxygène oxygen) + -ide (from acide acid)

First Known Use

1788, in the meaning defined above

Time Traveler
The first known use of oxide was in 1788

Cite this Entry

“Oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxide. Accessed 27 Jun. 2026.

Kids Definition

oxide

noun
ox·​ide ˈäk-ˌsīd How to pronounce oxide (audio)
: a compound of oxygen with another element or a chemical group

Medical Definition

oxide

noun
ox·​ide ˈäk-ˌsīd How to pronounce oxide (audio)
: a binary compound of oxygen with a more electropositive element or chemical group

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