: a binary compound of oxygen with a more electropositive element or group
Examples of oxide in a Sentence
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To overcome this, the researchers used an oxide coating on their nanopillars to protect against unwanted chemical reactions with saltwater while maintaining stable performance.
—
Ameya Paleja, Interesting Engineering, 20 Feb. 2026
Most capsule endoscopes today rely on coin-cell batteries, typically silver oxide, which offer a safe and energy-dense source but often occupy 30 to 50 percent of the capsule’s volume.
—IEEE Spectrum, 18 Feb. 2026
Released at the beginning of the month, the two limited editions both feature 41 mm cases crafted in black zirconium oxide ceramic, matching black dials, pops of blue in the same hue as the Mercedes driver’s helmet, and titanium casebacks engraved with his starting number (63).
—Rachel Cormack, Robb Report, 14 Feb. 2026
Bloom Energy — Shares rallied more than 13% after American Electric Power exercised an option to buy solid oxide fuel cells for about $2.65 billion.
—Michelle Fox,darla Mercado, Cfp®, CNBC, 8 Jan. 2026
See All Example Sentences for oxide
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Ameya Paleja, Interesting Engineering, 20 Feb. 2026
Most capsule endoscopes today rely on coin-cell batteries, typically silver oxide, which offer a safe and energy-dense source but often occupy 30 to 50 percent of the capsule’s volume.
—IEEE Spectrum, 18 Feb. 2026
Released at the beginning of the month, the two limited editions both feature 41 mm cases crafted in black zirconium oxide ceramic, matching black dials, pops of blue in the same hue as the Mercedes driver’s helmet, and titanium casebacks engraved with his starting number (63).
—Rachel Cormack, Robb Report, 14 Feb. 2026
Bloom Energy — Shares rallied more than 13% after American Electric Power exercised an option to buy solid oxide fuel cells for about $2.65 billion.
—Michelle Fox,darla Mercado, Cfp®, CNBC, 8 Jan. 2026
See All Example Sentences for oxide
Cite this Entry
“Oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxide. Accessed 22 Feb. 2026.
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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