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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.

The EPA estimated the 2022 emissions from flooded lands as equivalent to 44.4 million metric tons of carbon dioxide — comparable to U.S. steel and iron plants.

From Los Angeles Times • Apr. 15, 2026

Stegra expects to produce steel that cuts carbon dioxide emissions by 95% compared to the traditional process.

From The Wall Street Journal • Apr. 14, 2026

Power suppliers have previously been required to keep the operating rate of coal-fired thermal power stations that emit large amounts of carbon dioxide at or below 50 percent.

From Barron's • Mar. 27, 2026

The World Meteorological Organization says that our planet is gaining much more heat energy than it can release, driven by emissions of warming gases such as carbon dioxide.

From BBC • Mar. 23, 2026

How much oxygen does a person’s respiratory system exchange for carbon dioxide every hour?

From "All the Light We Cannot See" by Anthony Doerr