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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.

It absorbs a huge amount of the heat trapped by greenhouse gases, along with a significant share of the carbon dioxide produced by human activity.

From Science Daily • May 14, 2026

Unlike gas-fired power generation, which emits carbon dioxide emissions, geothermal heat is carbon-free.

From The Wall Street Journal • May 13, 2026

It’s one of the nation’s largest sources of sulfur dioxide, which forms haze and harms the respiratory system, and the second-largest source of carbon dioxide, according to EPA data.

From Salon • May 10, 2026

Methane, the second biggest contributor to climate change, stays in the atmosphere for far less time than carbon dioxide, but its warming effect is roughly 80 times more potent over a 20-year period.

From Barron's • May 4, 2026

Thousands of tiny pores in the shell allowed oxygen to enter and water and carbon dioxide to escape.

From "Frightful's Mountain" by Jean Craighead George




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