Chemistry. a salt or ester of nitrous acid.
Nutrition. sodium nitrite.

1790–1800; nitr- + -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
nitrite (ˈnaɪtraɪt)
any salt or ester of nitrous acid

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

nitrite ni·trite (nī'trīt')

  1. The univalent radical NO2.

  2. A compound containing such a radical, such as a salt or ester of nitrous acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
nitrite   (nī'trīt')  Pronunciation Key 
A salt or ester of nitrous acid, containing the group NO2. Nitrites are an important component of the nitrogen cycle and are used as food preservatives. Compare nitrate.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Pollutants from fertilizer runoff, such as nitrate and nitrite, are also removed.
The researchers calculated that such an amount of light would be enough to break down nitrite in the air.
The former turns ammonia into nitrite, which the latter then converts to nitrate, a potent fertilizer.
Sodium nitrite and nitrate undergo chemical changes in the human stomach to become potent carcinogens.
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