carbon monoxide


Definition of carbon monoxide

: 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 Turkey Leg Hut announces first phase of 2019 expansion through new food truck The smoke gives way to air pollutants like nitrogen oxides, carbon monoxide and organic gas and particulates, the lawsuit says. Julian Gill, Houston Chronicle, "Turkey Leg Hut's 'noxious smoke' creating health risk in Third Ward, lawsuit says," 21 Nov. 2019 The new study concludes that Borisov is a neutral gray and is also releasing plumes of carbon monoxide and water vapor, which account for the recent brightening. W. Wayt Gibbs, Science | AAAS, "Alien comets may be common, object from beyond Solar System suggests," 29 Oct. 2019 The fires are releasing greenhouse gases like carbon monoxide and nitrous dioxide, as well as toxic pollutants like fine particulate matter (PM2.5), the report said. Jessie Yeung, CNN, "The Amazon wildfires are causing a spike in children's breathing problems," 3 Oct. 2019 Install smoke, carbon monoxide and natural gas detectors, and test them monthly. Linda Gandee/special To,, "September is National Preparedness Month; Rocky River fire chief offers help to families," 16 Sep. 2019 Several maps showed more carbon monoxide and other pollutants in August than in the previous month, when there were fewer fires. Washington Post, "European space agency records Amazon air pollution," 11 Sep. 2019 According to the European Union’s Copernicus Climate Change Service, the Amazonian fires have generated a discernible spike in carbon monoxide and carbon dioxide emissions, threatening human health and exacerbating the effects of global warming. Meilan Solly, Smithsonian, "Three Things to Know About the Fires Blazing Across the Amazon Rainforest," 20 Aug. 2019 LanzaTech has cultivated a bacteria that can convert carbon monoxide and carbon dioxide into ethanol. Matthew Heimer, Fortune, "Fortune’s 2019 Change the World List: Companies to Watch," 19 Aug. 2019 Smog from the fires is blanketing much of Siberia, from Kazakhstan to the Bering Sea, with carbon monoxide and other nasties. The Economist, "The Arctic is ablaze," 1 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'carbon monoxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of carbon monoxide

1868, in the meaning defined above

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Time Traveler for carbon monoxide

Time Traveler

The first known use of carbon monoxide was in 1868

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Statistics for carbon monoxide

Last Updated

17 Jan 2020

Cite this Entry

“Carbon monoxide.” The Dictionary, Merriam-Webster Inc., Accessed 25 January 2020.

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More Definitions for carbon monoxide

carbon monoxide


English Language Learners Definition of carbon monoxide

: a poisonous gas that is formed when carbon is not completely burned and especially when gasoline is burned in car engines

carbon monoxide

carbon mon·​ox·​ide | \ -mə-ˈnäk-ˌsīd \

Kids Definition of carbon monoxide

: a colorless odorless very poisonous gas formed by incomplete burning of carbon

carbon monoxide


Medical Definition of carbon monoxide

: 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

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Rhyming Dictionary: Words that rhyme with carbon monoxide

Spanish Central: Translation of carbon monoxide Encyclopedia article about carbon monoxide

Comments on carbon monoxide

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dull or mediocre

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