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carbon monoxide
noun
: a colorless odorless very toxic gas CO that is formed as a product of the incomplete combustion of carbon or a carbon compound
Examples of carbon monoxide in a Sentence
Recent Examples on the Web
However, during warm periods the carbon monoxide would have changed back to carbon dioxide.
—
Robert Lea, Space.com, 30 Jan. 2025
Jessel has been nearly as silent and odorless as carbon monoxide this whole season, and finally, the fighter in her is snapped to the front.
—
Brian Moylan, Vulture, 28 Jan. 2025
And in 2023 alone, Massachusetts fire departments reported finding carbon monoxide at nearly 5,000 non-fire incidents.
—
Joe Dwinell, Boston Herald, 23 Jan. 2025
When a device detects a house fire or carbon monoxide, customers will be notified via the Ring app on top of the usual alarm sound so people inside and outside the house will know when something is amiss.
—
Joe Hindy, PCMAG, 6 Jan. 2025
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Word History
First Known Use
1868, in the meaning defined above
Dictionary Entries Near carbon monoxide
Cite this Entry
“Carbon monoxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20monoxide. Accessed 12 Feb. 2025.
Kids Definition
carbon monoxide
noun
: a colorless odorless very poisonous gas formed by the incomplete burning of carbon
Medical Definition
carbon monoxide
noun
: a colorless odorless very toxic gas CO that burns to carbon dioxide with a blue flame and is formed as a product of the incomplete combustion of carbon
More from Merriam-Webster on carbon monoxide
Britannica.com: Encyclopedia article about carbon monoxide
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