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carbon dioxide - definition and synonyms


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noun [uncountable] chemistry carbon dioxide pronunciation in American English /ˌkɑrbən daɪˈɑkˌsaɪd/
  1. a gas without color or smell, produced when you breathe out or when substances containing carbon are burnt. The fact that the earth is getting hotter because of carbon dioxide in the atmosphere is called the greenhouse effect.

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in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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