CEFR B2

co2

noun

Meaning

A colorless, odorless gas formed during respiration and the combustion of organic matter, composed of one carbon atom and two oxygen atoms.

Examples

Rising levels of CO2 in the atmosphere are a primary driver of global climate change.
The greenhouse effect occurs when gases like CO2 trap heat within the Earth's atmosphere.

Synonyms: carbon dioxide

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co2 (B2)

noun

Pronunciation: siː-əʊ-ˈtuː

Definition

A colorless, odorless gas formed during respiration and the combustion of organic matter, composed of one carbon atom and two oxygen atoms.

Examples

Rising levels of CO2 in the atmosphere are a primary driver of global climate change.
The greenhouse effect occurs when gases like CO2 trap heat within the Earth's atmosphere.

Synonyms of co2

Words with a similar meaning to co2:

carbon dioxide

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