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citric acid

noun
1.
a white, crystalline, water-soluble powder, C 6 H 8 O 7 ⋅H 2 O, a tribasic acid having a strong acidic taste, an intermediate in the metabolism of carbohydrates occurring in many fruits, especially limes and lemons, obtained chiefly by fermentation of crude sugar or corn sugar: used chiefly in the flavoring of beverages, confections, and pharmaceuticals.
Origin of citric acid
1805-1815
First recorded in 1805-15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for citric acid

citric acid

noun
1.
a water-soluble weak tribasic acid found in many fruits, esp citrus fruits, and used in pharmaceuticals and as a flavouring (E330). It is extracted from citrus fruits or made by fermenting molasses and is an intermediate in carbohydrate metabolism. Formula: CH2(COOH)C(OH)(COOH)CH2COOH
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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citric acid in Medicine

citric acid cit·ric acid (sĭt'rĭk)
n.
A colorless translucent crystalline acid principally derived by fermentation of carbohydrates; an intermediate in metabolism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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citric acid in Science
citric acid
  (sĭt'rĭk)   
A white, odorless acid that has a sour taste and occurs widely in plants, especially in citrus fruit, and is formed during the Krebs cycle. It is used in medicine and as a flavoring. Ions of citric acid are a by-product of the metabolism of carbohydrates during the Krebs cycle.Chemical formula: C6H8O7.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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