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: a binary compound of oxygen with a more electropositive element or group
Examples of oxide in a Sentence
Recent Examples on the Web
Scientists at Northwestern University built a battery that uses triphenylphosphine oxide, a common industrial waste product, to store energy instead of metals.
—Alex Knapp, Forbes, 10 Jan. 2025
Redistributing Refining Refining rare earth ore into rare earth oxides begins with a process called beneficiation in the industry.
—IEEE Spectrum, 27 Dec. 2024
Nearly ten years of research at MIT resulted in tweaking metal oxides to perform as the Joule Hive firebricks.
—Andrew Rosenblum, Popular Science, 26 Dec. 2024
Furthermore, the action of the sun's radiation on these ices spurs chemical reactions that produce organic byproducts such as acetylene, ethane, propane, as well as various carbon oxides, all of which were found as ices on Chiron's surface by the JWST.
—Keith Cooper, Space.com, 23 Dec. 2024
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Word History
Etymology
French oxide, oxyde, from ox- (from oxygène oxygen) + -ide (from acide acid)
First Known Use
1788, in the meaning defined above
Phrases Containing oxide
Dictionary Entries Near oxide
Cite this Entry
“Oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxide. Accessed 21 Jan. 2025.
Kids 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
More from Merriam-Webster on oxide
Nglish: Translation of oxide for Spanish Speakers
Britannica English: Translation of oxide for Arabic Speakers
Britannica.com: Encyclopedia article about oxide
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