: a binary compound of oxygen with a more electropositive element or group
Examples of oxide in a Sentence
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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
Uranium oxide glassware, which glows under UV light, is hot now.
—Roxana Popescu, San Diego Union-Tribune, 19 May 2025
Magnesium Oxide Magnesium oxide can be an effective option for treating migraines in pregnant people.
—Emmanuella Ogbonna, Health, 15 Apr. 2025
See All Example Sentences for oxide
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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
Uranium oxide glassware, which glows under UV light, is hot now.
—Roxana Popescu, San Diego Union-Tribune, 19 May 2025
Magnesium Oxide Magnesium oxide can be an effective option for treating migraines in pregnant people.
—Emmanuella Ogbonna, Health, 15 Apr. 2025
See All Example Sentences for oxide
Cite this Entry
“Oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxide. Accessed 18 Jul. 2025.
Copy CitationKids Definition
oxide
noun
ox·ide
ˈäk-ˌsīd 
: a compound of oxygen with another element or a chemical group
Medical Definition
oxide
noun
ox·ide
ˈäk-ˌsīd
: a binary compound of oxygen with a more electropositive element or chemical group
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