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Definitions

carbon dioxide

[kahr-buhn dahy-ok-sahyd] / ˈkɑr bən daɪˈɒk saɪd /
NOUN
colorless odorless gas
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Water is less volatile than methane or carbon dioxide, which means its gas production shuts down more quickly as the comet cools.

From Science Daily • Jun. 4, 2026

Alternatives made from used cooking oil, cover crops and even captured carbon dioxide would have eased pressures on the beleaguered industry—if only there had been enough to go round.

From The Wall Street Journal • Jun. 2, 2026

Lower carbon dioxide emissions from soil in these areas often reflect declining root activity and shrinking microbial populations.

From Science Daily • Jun. 2, 2026

“Current AI systems require enormous amounts of energy and water, significantly influencing carbon dioxide emissions, and place heavy demands on natural resources,” he wrote.

From Barron's • May 26, 2026

Trees are great and beautiful machines, powered by sunlight, taking in water from the ground and carbon dioxide from the air, converting these materials into food for their use and ours.

From "Cosmos" by Carl Sagan




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