dicarbonic /(dī`kär*bŏn"ĭk)/

di·car·bon·ic

dicarbonic

a.
  1. Containing two carbon residues, or two carboxyl groups or radicals; as, oxalic acid is the simplest dicarbonic acid. In the latter sense, synonymous with dicarboxylic; as, succinic acid is a dicarboxylic acid. (Chem.)