[muh-lee-ik] /məˈli ɪk/

noun, Chemistry.
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.
a colourless soluble crystalline substance used to synthesize other compounds. Formula: HOOCCH:CHCOOH Systematic name cis-butanedioic acid

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


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    [hahy-druh-zahyd] /ˈhaɪ drəˌzaɪd/ noun, Chemistry. 1. a crystalline compound, C 4 N 2 H 4 O 2 , used as a plant growth inhibitor and weed-killer.

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