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
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LanzaTech’s process routes industrial gases into special bioreactors containing anaerobic bacteria which consume carbon monoxide, carbon dioxide, and hydrogen and produce ethanol, using a fermentation process similar to that of yeast.
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Erik Kobayashi-Solomon, Forbes.com, 10 Sep. 2025
Any liquid water on TRAPPIST-1 e would be accompanied by a greenhouse effect, which would involve various gases, especially carbon dioxide, keeping the atmosphere stable and the planet warm.
—Julia Jacobo, ABC News, 10 Sep. 2025
And with SMRs getting closer to deployment, heavy industries, too, now see them as a tool to further reduce their carbon dioxide emissions.
—Anna Heim, Fortune, 9 Sep. 2025
Two of the missions with uncertain futures monitor carbon dioxide levels in the Earth's atmosphere.
—Stephen Clark, ArsTechnica, 6 Sep. 2025
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Erik Kobayashi-Solomon, Forbes.com, 10 Sep. 2025
Any liquid water on TRAPPIST-1 e would be accompanied by a greenhouse effect, which would involve various gases, especially carbon dioxide, keeping the atmosphere stable and the planet warm.
—Julia Jacobo, ABC News, 10 Sep. 2025
And with SMRs getting closer to deployment, heavy industries, too, now see them as a tool to further reduce their carbon dioxide emissions.
—Anna Heim, Fortune, 9 Sep. 2025
Two of the missions with uncertain futures monitor carbon dioxide levels in the Earth's atmosphere.
—Stephen Clark, ArsTechnica, 6 Sep. 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 17 Sep. 2025.
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