Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a yellowish or white powder, NaNO, used to make dyes, preserve meats, counteract cyanide poisoning, etc.
Used by arrangement with John Wiley & Sons, Inc.
sodium nitrite - Medical Definition
nounThe American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A white crystalline compound used to lower systemic blood pressure, to relieve local vasomotor spasms, to relax bronchial and intestinal spasms, and as an antidote for cyanide poisoning.