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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
Emergency alerts for critical events such as glass breaking or fire and carbon monoxide alarms.
—Paul Du Quenoy, Newsweek, 9 Dec. 2024
Replace your carbon monoxide alarm every five to six years or as the manufacturer specifies.
—Todd Karpovich, Baltimore Sun, 5 Dec. 2024
Keep the exhaust pipe free of blockage to prevent carbon monoxide poisoning.
—John Tufts, The Indianapolis Star, 4 Dec. 2024
The Hanukkah Eve storm of 2006 claimed the lives of 14, including eight from carbon monoxide poisoning, and left around 1.5 million people without power for up to 11 days, per HistoryLink.
—Christine Clarridge, Axios, 25 Nov. 2024
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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 23 Dec. 2024.
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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