(ˈ)fyü|marik- noun
Etymology: fumaric International Scientific Vocabulary fumar- + -ic
: a crystalline unsaturated dicarboxylic acid HOOCCH . CHCOOH that is found in fumitory and many other plants and is formed from succinic acid as an intermediate in the Krebs cycle, that is made synthetically (as by heating maleic acid), and that is used chiefly in making polyester resins; trans -butene-dioic acid — see cis-trans isomerism a