"carbon monoxide." YourDictionary, n.d. Web. 21 March 2019. <https://www.yourdictionary.com/carbon-monoxide>.
carbon monoxide. (n.d.). Retrieved March 21st, 2019, from https://www.yourdictionary.com/carbon-monoxide
A colorless, odorless gas formed when a compound containing carbon burns incompletely because there is not enough oxygen. It is present in the exhaust gases of automobile engines and is very poisonous. Chemical formula:CO.