: a binary compound of oxygen with a more electropositive element or group
Examples of oxide in a Sentence
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Preparing the radioactive fuel alone takes the work of multiple DOE facilities scattered across the country: Oak Ridge National Laboratory produces the plutonium oxide, then Los Alamos National Laboratory forms it into usable pellets, which are finally stockpiled at Idaho National Laboratory.
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Hannah Richter, Scientific American, 13 Aug. 2025
The method grows the manganese vanadium oxide on top of the crystal substrate—which gives engineers more control over the film’s thickness, composition, and crystal structure, according to Photonics Media.
—IEEE Spectrum, 7 Aug. 2025
On the other hand, Roman concrete emits much lower volumes of such air pollutants as nitrogen oxide and sulfur oxide—between 11 percent and 98 percent less, depending on whether the energy source was fossil fuels, biomass, or renewable energy (which had the biggest reductions).
—Jennifer Ouellette, ArsTechnica, 30 July 2025
When exposed to steam, the oxide absorbs oxygen from water, and leaves hydrogen behind for the taking.
—Abhimanyu Ghoshal, New Atlas, 23 June 2025
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Hannah Richter, Scientific American, 13 Aug. 2025
The method grows the manganese vanadium oxide on top of the crystal substrate—which gives engineers more control over the film’s thickness, composition, and crystal structure, according to Photonics Media.
—IEEE Spectrum, 7 Aug. 2025
On the other hand, Roman concrete emits much lower volumes of such air pollutants as nitrogen oxide and sulfur oxide—between 11 percent and 98 percent less, depending on whether the energy source was fossil fuels, biomass, or renewable energy (which had the biggest reductions).
—Jennifer Ouellette, ArsTechnica, 30 July 2025
When exposed to steam, the oxide absorbs oxygen from water, and leaves hydrogen behind for the taking.
—Abhimanyu Ghoshal, New Atlas, 23 June 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 29 Aug. 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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