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
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PMNs are potato-sized balls that form over millions of years as layers of metal oxides slowly accumulate around an existing object on the ocean floor, such as a shark tooth or shell fragment. Jake Angelo, Fortune, 15 May 2026 The reactor is engineered to run on mixed-oxide (MOX) fuel and transuranic (TRU) fuels sourced from existing Department of Energy stockpiles. Aman Tripathi, Interesting Engineering, 14 May 2026 The Unexpected Red Theory comes into play with the Ferm Living Classic Haze wall cabinet in oxide red. Yelena Moroz Alpert, Architectural Digest, 24 Apr. 2026 The process begins by separating a couple of small silicon chips from a larger sheet, then coating them with a layer of oxide in a high-temperature furnace. Jon Martindale, PC Magazine, 23 Apr. 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 17 May. 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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