carbon monoxide

Definitions

Agriculture

  • noun a colourless, odourless and poisonous gas found in fumes from car engines, burning gas and cigarette smoke.

Cars & Driving

  • noun a poisonous but colourless and odourless gas resulting from incomplete oxidation or combustion of carbon, which is one of the three major pollutants found in the exhaust of spark ignition engines.
http://www.dictionarycentral.com/definition/carbon-monoxide.html