carbon dioxide
Advanced English dictionary
+ noun[U] (Symbol CO2) a gas breathed out by people and animals from the lungs or produced by burning CARBON
Collocation
VERB + CARBON DIOXIDE
absorb, take in
Trees absorb carbon dioxide and produce oxygen.
| emit, give out, produce, release | form, give
How is carbon dioxide formed? Coke burns with oxygen to give carbon dioxide.
CARBON DIOXIDE + NOUN
emissions
PHRASES
a build-up of carbon dioxide, emissions of carbon dioxide
Concise dictionary
noun+a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
