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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As part of the deal, the Pentagon will guarantee a minimum price of $110 per kilogram for neodymium-praseodymium oxide (NdPr) produced at the facility for 10 years and agrees to buy 100% of the magnets manufactured by MP Materials. David Blackmon, Forbes.com, 12 July 2025 Lead—Usually as the sulphate, a white solid, of the sulphide, a black solid; but sometimes the oxide, a yellowish solid. Caroline Fraser june 10, Literary Hub, 10 June 2025 Chinese customs data shows, imports of rare earth oxides from Myanmar fell by over a third in the first five months of the year compared to the same period last year. Dylan Butts, CNBC, 24 June 2025 Through a cascading series of reactions, the sodium oxide would ultimately form into sodium bicarbonate, aka baking soda. Ben Coxworth june 02, New Atlas, 2 June 2025 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 21 Jul. 2025.

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

More from Merriam-Webster on oxide

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