carbon monoxide

noun

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

For instance, using this method astronomers have learned that HR 8799e is a hot, inhospitable world made of carbon monoxide and methane. Avery Thompson, Popular Mechanics, "New Method For Studying Exoplanets Could Tell Us Far More About Alien Worlds," 29 Mar. 2019 Methylene chloride turns into carbon monoxide and can be inhaled even when those using it wear a mask. Natalie Dreier, ajc, "Lowe’s pulls paint strippers with deadly ingredients," 30 May 2018 Boyle's dog was also found deceased, having succumbed to exposure to carbon monoxide. Madeleine Marr, miamiherald, "He carefully planned his suicide. But the plan went horribly awry, cops say.," 30 May 2018 The school remained closed March 23 while the fire department and other air quality professionals monitored the buildings for carbon monoxide. Jordyn Noennig, Milwaukee Journal Sentinel, "Carbon monoxide has not been detected within Oconomowoc High School and Arts Center," 11 Apr. 2018 Mars' atmosphere is 95.97 percent carbon dioxide, 1.89 percent nitrogen, 1.93 percent argon, 0.0557 percent carbon monoxide and just 0.146 percent oxygen. Chris Ciaccia, Fox News, "How Buzz Aldrin wants to make Mars habitable," 28 June 2018 Sulfur dioxide along with ground level ozone, particle pollution and carbon monoxide are the four major air pollutants regulated by the Clean Air Act and calculated by the EPA to determine air quality index levels. Susan Scutti, CNN, "Hawaiian vacation planned but you're worried about air quality? Go.," 10 May 2018 British tourists Stuart Hill, 30, Jason Hill, 31, and Rebecca Dobson, 27, inhaled fatal amounts of smoke and carbon monoxide and were burned across their entire bodies, Mohave County Medical Examiner A.L. Mosley wrote in the reports. Alden Woods, azcentral, "Autopsies: Explosion, not initial crash, killed 3 Grand Canyon helicopter victims," 3 May 2018 Some systems can even detect smoke, heat, fire and carbon monoxide. Kenya Burrell-vanwormer, Houston Chronicle, "Keep safety in mind when buying a home," 29 Apr. 2018

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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Statistics for carbon monoxide

Last Updated

11 Apr 2019

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Time Traveler for carbon monoxide

The first known use of carbon monoxide was in 1868

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More Definitions for carbon monoxide

carbon monoxide

noun

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

noun
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

noun

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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More from Merriam-Webster on carbon monoxide

Rhyming Dictionary: Words that rhyme with carbon monoxide

Spanish Central: Translation of carbon monoxide

Britannica.com: Encyclopedia article about carbon monoxide

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