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
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Cities can, but don’t have to, require smoke detectors, carbon monoxide alarms and fire extinguishers.
—
Mark Dee, Idaho Statesman, 10 Feb. 2026
Instead of focusing on common gases like water vapor or carbon monoxide, the scientists searched for sulfur-bearing molecules — elements that typically begin as solid grains in a young protoplanetary disk and thus suggest the planet formed through core accretion, according to the statement.
—Samantha Mathewson, Space.com, 10 Feb. 2026
Burning natural gas for long periods can increase carbon monoxide levels in your home.
—Erin Huffstetler, The Spruce, 9 Feb. 2026
Crews also had to deal with an elevated level of carbon monoxide that was created by the fire.
—Patrick Damp, CBS News, 8 Feb. 2026
See All Example Sentences for carbon monoxide
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Mark Dee, Idaho Statesman, 10 Feb. 2026
Instead of focusing on common gases like water vapor or carbon monoxide, the scientists searched for sulfur-bearing molecules — elements that typically begin as solid grains in a young protoplanetary disk and thus suggest the planet formed through core accretion, according to the statement.
—Samantha Mathewson, Space.com, 10 Feb. 2026
Burning natural gas for long periods can increase carbon monoxide levels in your home.
—Erin Huffstetler, The Spruce, 9 Feb. 2026
Crews also had to deal with an elevated level of carbon monoxide that was created by the fire.
—Patrick Damp, CBS News, 8 Feb. 2026
See All Example Sentences for carbon monoxide
Cite this Entry
“Carbon monoxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20monoxide. Accessed 14 Feb. 2026.
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