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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In the conversion process, the solid uranium oxide concentrate is reacted with fluorine to create the UF6 gas. Aman Tripathi, Interesting Engineering, 27 Mar. 2026 The collaboration aims to create a recycling system at MP Materials' Mountain Pass refinery, where MP Materials will recycle end-of-life and other magnet materials to make separated oxides. Brit McCandless Farmer, CBS News, 22 Mar. 2026 The air was filled with sulfur oxides, heavy metal dust and airborne particulates. Ella Whitman, The Conversation, 19 Mar. 2026 And McCarron said the developer plans to use a solid oxide energy server, rather than a combustion process, to reduce pollution from the development. Molly Morrow, Chicago Tribune, 13 Mar. 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 30 Mar. 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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