carbon monoxide
n.
A colorless, odorless, highly poisonous gas, CO, formed by the incomplete combustion of carbon or a carbonaceous material, such as gasoline.
Source: The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.


carbon monoxide

n : an odorless very poisonous gas that is a product of incomplete combustion of carbon [syn: carbon monoxide gas]
Source: WordNet ® 1.6, © 1997 Princeton University