nitrogen dioxide Hear it!

nitrogen dioxide definition

nitrogen dioxide

a poisonous, reddish-brown gas, NO, used in making nitric acid, as a rocket-fuel oxidizer, etc.: it is also an air pollutant formed from automobile exhausts

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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