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maleic acid

[muh-lee-ik] /məˈli ɪk/
noun, Chemistry
1.
a colorless, crystalline, water-soluble solid, C 4 H 4 O 4 , isomeric with fumaric acid, having an astringent, repulsive taste and faint acidulous odor: used in the manufacture of synthetic resins, the dyeing and finishing of textiles, and as a preservative for fats and oils.
Origin
1870-1875
1870-75; < French maléique, alteration of malique malic
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for maleic acid

maleic acid

/məˈleɪɪk/
noun
1.
a colourless soluble crystalline substance used to synthesize other compounds. Formula: HOOCCH:CHCOOH Systematic name cis-butanedioic acid
Word Origin
C19: from French maléique, altered form of malique; see malic acid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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maleic acid in Medicine

maleic acid ma·le·ic acid (mə-lē'ĭk)
n.
A colorless crystalline dibasic acid that is an isomer of fumaric acid and is used as an oil and fat preservative.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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maleic acid in Science
maleic acid
  (mə-lē'ĭk)   
A colorless crystalline acid used in textile processing and as an oil and fat preservative. Maleic acid is a geometric isomer of fumaric acid, having two carboxyl groups (COOH) on the same side of an ethylene chain. Chemical formula: C4H4O4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for maleic acid

cis-butenedioic acid

unsaturated organic dibasic acid, used in making polyesters for fibre-reinforced laminated moldings and paint vehicles, and in the manufacture of fumaric acid and many other chemical products. Maleic acid and its anhydride are prepared industrially by the catalytic oxidation of benzene.

Learn more about cis-butenedioic acid with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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