- 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.
Origin of maleic acid
1870–75; < French maléique, alteration of malique malic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a colourless soluble crystalline substance used to synthesize other compounds. Formula: HOOCCH:CHCOOHSystematic name: cis-butanedioic acid
C19: from French maléique, altered form of malique; see malic acid
- A colorless crystalline dibasic acid that is an isomer of fumaric acid and is used as an oil and fat preservative.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.