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
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Of all fossil fuels, coal emits the most carbon dioxide per unit of energy, and burning it releases deadly pollutants into the air.
—
Simmone Shah, Time, 20 Feb. 2026
Health benefits of house burping House burping can help remove contaminants such as carbon dioxide buildup, dust, allergens and gases from cleaning products and air fresheners from the home.
—Alex Perry, Cincinnati Enquirer, 19 Feb. 2026
Although China is the world’s largest emitter of carbon dioxide, the country is also the global leader in renewable energy, especially wind and solar.
—Jackie Flynn Mogensen, Scientific American, 19 Feb. 2026
Driving an electric vehicle instead of a gas car cuts roughly 7,400 pounds of carbon dioxide per person annually, even after accounting for emissions from electricity generation.
—Aya Diab, Los Angeles Times, 18 Feb. 2026
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Simmone Shah, Time, 20 Feb. 2026
Health benefits of house burping House burping can help remove contaminants such as carbon dioxide buildup, dust, allergens and gases from cleaning products and air fresheners from the home.
—Alex Perry, Cincinnati Enquirer, 19 Feb. 2026
Although China is the world’s largest emitter of carbon dioxide, the country is also the global leader in renewable energy, especially wind and solar.
—Jackie Flynn Mogensen, Scientific American, 19 Feb. 2026
Driving an electric vehicle instead of a gas car cuts roughly 7,400 pounds of carbon dioxide per person annually, even after accounting for emissions from electricity generation.
—Aya Diab, Los Angeles Times, 18 Feb. 2026
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 23 Feb. 2026.
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