Definition of fumaric acid in US English:

fumaric acid


  • A crystalline acid, isomeric with maleic acid, present in fumitory and many other plants.

    Alternative name: trans-butenedioic acid; chemical formula: HOOCCHCHCOOH

    • ‘On the other hand, the monoanion of fumaric acid is the stronger acid than the analog maleate ion.’
    • ‘Chromatography of organic acids evidences the excreted fumaric acid, often associated with succinic acid and alphacetoglutaric acid.’
    • ‘In the case of phthalazine complete proton transfer from one carboxy group of oxalic and fumaric acid to a nitrogen atom of the heterocycle, generating ionic interactions is observed.’
    • ‘Other systemic therapies include monoclonal antibodies, protein specifically targeting memory T cells, fumaric acid esters, novel retinoids, and macrolactams.’
    • ‘It has strong anti-carcinogenic properties and is rich in a number of complex phytochemicals including ergosterol, fumaric acid, aminoglucose and mannitol, coumarins, alkaloids, lactone and various enzymes.’
    • ‘To give food a light texture, and/or control its acidity/alkalinity, yeast, sodium bicarbonate, citric acid, fumaric acid, phosphoric acid, lactic acid, and tartrates may be added.’
    • ‘Three parts of fumaric acid are as sour as five parts of citric acid.’
    • ‘The present invention relates to a method of increasing the rate of solubility of fumaric acid in water, and especially in cold water, and products therefrom.’
    • ‘They were created in a laboratory with the help of adipic acid, disodium phospic and fumaric acid, and taste like it too.’


Mid 19th century: fumaric from modern Latin Fumaria ‘fumitory’ + -ic.


fumaric acid

/fyo͞oˌmerik ˈasəd/