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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.

While these algal blooms absorb carbon dioxide from the atmosphere through photosynthesis, they also pose a major threat to the region's delicate balance.

From BBC • Jun. 30, 2026

The observations revealed an atmosphere containing water vapor, methane, carbon dioxide, ammonia and other molecules.

From Science Daily • Jun. 28, 2026

But Africa, which experiences long periods of heat, is the least-polluting continent on the plane, with less than four percent of global carbon dioxide emissions.

From Barron's • Jun. 26, 2026

But so were a slew of steps that involved using oil, gas and coal despite the carbon dioxide emissions they would continue to produce.

From Salon • Jun. 26, 2026

Plant cells today have tiny molecular factories, called chloroplasts, which are in charge of photosynthesis—the conversion of sunlight, water and carbon dioxide into carbohydrates and oxygen.

From "Cosmos" by Carl Sagan




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