from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A colorless translucent crystalline acid, C6H8O7, principally derived by fermentation of carbohydrates or from lemon, lime, and pineapple juices and used in preparing citrates and in flavorings and metal polishes.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry A colourless crystalline compound, 2-hydroxy-1,2,3-propanetricarboxylic acid, C6H8O7, found in citrous fruit; it is used as a food additive and in the manufacture of citrates.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a weak water-soluble acid found in many fruits (especially citrus fruits); used as a flavoring agent


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  • Chemical food additive largely made from corn in the U.S.

    January 26, 2010