maleic acid

noun Chemistry.

1. a colorless, crystalline, water-soluble solid, C4H4O4, 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.

noun

1. a colourless soluble crystalline substance used to synthesize other compounds. Formula: HOOCCH:CHCOOHSystematic name: cis-butanedioic acid

n.

1. A colorless crystalline dibasic acid that is an isomer of fumaric acid and is used as an oil and fat preservative.

1. 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.