English Etymology From di- + carboxylic acid. Noun dicarboxylic acid (plural dicarboxylic acids) (organic chemistry) Any organic compound having two carboxylic acid functional groups. Derived terms azodicarboxylic acid Translations difunctional by having 2 carboxyl groups Finnish: dikarboksyylihappo German: Dicarbonsäure (de) f Hungarian: dikarbonsav sg Japanese: ジカルボン酸 (jikarubon san) Romanian: acid dicarboxilic (ro) m Swedish: dikarboxylsyra c Wikiwand - on Seamless Wikipedia browsing. On steroids.