monoxide

American  

[mon-ok-sahyd, muh-nok-] / mɒnˈɒk saɪd, məˈnɒk- /

noun

Chemistry.

1. an oxide containing one oxygen atom in each molecule.

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monoxide British  

/ mɒˈnɒksaɪd /

noun

1. an oxide that contains one oxygen atom per molecule

   carbon monoxide, CO

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monoxide Scientific  

/ mə-nŏk′sīd′ /

1. A compound consisting of two elements, one of which is a single oxygen atom. Carbon monoxide, for example, contains a carbon atom bound to a single oxygen atom.

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Etymology

Origin of monoxide

First recorded in 1865–70; mon- + oxide

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Example Sentences

See Examples For:

monoxide

Their strategy involved delivering a metal catalyst into cells and using the excess carbon monoxide in cancer cells to drive a chemical reaction that produces a toxic compound.

From Science Daily ● Nov. 4, 2026

Swathes of smouldering forest, swamp and peatlands have turned the air thick with microparticles and carbon monoxide, creating a noxious cloud that has swaddled Indonesia and drifted as far as Singapore, Malaysia and the Philippines.

From BBC ● Oct. 20, 2026

He said a woman and three children were hospitalised "with symptoms of carbon monoxide poisoning" in the region after drone debris fell on a house, causing a fire.

From Barron's ● Oct. 18, 2026

EPA officials said on a call Monday that the change will not include pollutants that directly harm health such as carbon monoxide and nitrogen dioxide, which are regulated separately.

From Los Angeles Times ● Sep. 14, 2026

“Carbon monoxide plus iron gives the volatile iron carbonyl.”

From "I, Robot" by Isaac Asimov

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