CO₂

• CO2 (nonstandard; acceptable when subscripts are not available or cannot be displayed)

CO₂

1. carbon dioxide.

• IPA^(key): /si.oʊ.tu/, /siː.əʊ.tuː/

CO₂ (uncountable)

1. carbon dioxide.
   • President Obama Announces Accelerated Purchase of 17,600 New American Vehicles for Government Fleet, 2009-04-09:

     By swapping out less efficient federal vehicles for new hybrid and fuel efficient ones, this strategy will reduce gasoline consumption by 1.3 million gallons per year and prevent 26 million pounds of CO₂ from entering the atmosphere.

• carbon dioxide
• carbonic acid gas

• CO₂ emission
• CO₂ emission right

• O. C., O.C., OC, Oc, Oc.

From translingual CO₂

• IPA^(key): /seotoːˀ/, [seoˈtˢoˀ]

CO₂ c (singular definite CO₂'en, not used in plural form)

1. (inorganic chemistry) carbon dioxide

   Synonyms: carbondioxid, kuldioxid, kultveilte