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
Do not use generators or grills inside as carbon monoxide poisoning can result.
—
Bay Area Weather Report, Mercury News, 17 Feb. 2026
Check your smoke and carbon monoxide detectors monthly by pressing the test button for a few seconds.
—Caroline Lubinsky, Martha Stewart, 17 Feb. 2026
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
See All Example Sentences for carbon monoxide
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bay Area Weather Report, Mercury News, 17 Feb. 2026
Check your smoke and carbon monoxide detectors monthly by pressing the test button for a few seconds.
—Caroline Lubinsky, Martha Stewart, 17 Feb. 2026
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
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 20 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
