carbon dioxide
noun
: a heavy colorless gas CO2 that does not support combustion, dissolves in water to form carbonic acid, is formed especially in animal respiration and in the decay or combustion of animal and vegetable matter, is absorbed from the air by plants in photosynthesis, and is used in the carbonation of beverages
Examples of carbon dioxide in a Sentence
Recent Examples on the Web
The latest findings build on previous research by the same group of astronomers, who also detected carbon dioxide and methane within the planet’s atmosphere using Webb’s Near-Infrared Imager and Slitless Spectrograph and Near-Infrared Spectrograph instruments.
—
Ashley Strickland, CNN Money, 17 Apr. 2025
Thursday, April 17 Worldly topics: Professor Wolfgang Bush of the Salk Institute will talk about developing plants for atmospheric carbon dioxide removal and sustainability during the 10 a.m. Thursday, April 17 World Affairs Council North County Chapter meeting.
—Pomerado News, San Diego Union-Tribune, 17 Apr. 2025
Over time, however, solar wind and radiation likely siphoned away the Martian atmosphere, gradually thinning it to the point where carbon dioxide began transforming into rock.
—Andrew Paul, Popular Science, 17 Apr. 2025
Madhusudhan and his team first detected hints of dimethyl sulfide on the planet in 2023, along with carbon dioxide and methane.
—Sara Hashemi, Smithsonian Magazine, 17 Apr. 2025
See All Example Sentences for carbon dioxide
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.
Ashley Strickland, CNN Money, 17 Apr. 2025
Thursday, April 17 Worldly topics: Professor Wolfgang Bush of the Salk Institute will talk about developing plants for atmospheric carbon dioxide removal and sustainability during the 10 a.m. Thursday, April 17 World Affairs Council North County Chapter meeting.
—Pomerado News, San Diego Union-Tribune, 17 Apr. 2025
Over time, however, solar wind and radiation likely siphoned away the Martian atmosphere, gradually thinning it to the point where carbon dioxide began transforming into rock.
—Andrew Paul, Popular Science, 17 Apr. 2025
Madhusudhan and his team first detected hints of dimethyl sulfide on the planet in 2023, along with carbon dioxide and methane.
—Sara Hashemi, Smithsonian Magazine, 17 Apr. 2025
See All Example Sentences for carbon dioxide
Cite this Entry
“Carbon dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20dioxide. Accessed 1 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share