: a binary compound of oxygen with a more electropositive element or group
Examples of oxide in a Sentence
Recent Examples on the Web
Economic and scientific impact An economic analysis found that replacing standard iridium oxide with Ru₆IrOₓ could cut anode catalyst costs by over 80%.
—
Aamir Khollam, Interesting Engineering, 13 Oct. 2025
The Two-Stage Tear Cascade While past research had already identified the irritant in onions—known to chemists as propanethial S-oxide—this study is the first to explain how the sulfur compound reaches a cook's eyes.
—Maria Morava, MSNBC Newsweek, 8 Oct. 2025
The aluminum-creation process begins with bauxite ore, a raw material that contains desirable aluminum-rich minerals but also a host of impurities including silica and iron and titanium oxides.
—New Atlas, 17 Sep. 2025
Another selling point is the reduction of combustion emissions (e.g., nitrogen and sulfur oxides and small particulate matter) that often burden industrial operations in dense urban settings.
—Erik Kobayashi-Solomon, Forbes.com, 9 Sep. 2025
See All Example Sentences for oxide
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.
Aamir Khollam, Interesting Engineering, 13 Oct. 2025
The Two-Stage Tear Cascade While past research had already identified the irritant in onions—known to chemists as propanethial S-oxide—this study is the first to explain how the sulfur compound reaches a cook's eyes.
—Maria Morava, MSNBC Newsweek, 8 Oct. 2025
The aluminum-creation process begins with bauxite ore, a raw material that contains desirable aluminum-rich minerals but also a host of impurities including silica and iron and titanium oxides.
—New Atlas, 17 Sep. 2025
Another selling point is the reduction of combustion emissions (e.g., nitrogen and sulfur oxides and small particulate matter) that often burden industrial operations in dense urban settings.
—Erik Kobayashi-Solomon, Forbes.com, 9 Sep. 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 15 Oct. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share