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.
In 2024, Myanmar supplied China with 50,000 metric tons of rare-earth oxides, surpassing China’s domestic production of these materials. Ye Myo Hein, Foreign Affairs, 17 Apr. 2025 The atoms of nitrogen heat up and react with oxygen, creating the harmful oxides. Tereza Pultarova, Space.com, 2 Feb. 2025 This method recovers more than 90% of the REEs from the HDD feedstock to produce a more than 99.5% pure rare earth oxides. Thomas Coughlin, Forbes.com, 21 Apr. 2025 One of the metals subject to the new controls, dysprosium oxide, trades for $204 per kilogram in Shanghai, and much more outside China. Keith Bradsher, New York Times, 13 Apr. 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 11 May. 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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