The Collaborative International Dictionary
Xeronic
Xeronic \Xe*ron"ic\, a. [Gr. ? dry + citraconic.] (Chem.) Pertaining to, or designating, an acid, C8H12O4, related to fumaric acid, and obtained from citraconic acid as an oily substance having a bittersweet taste; -- so called from its tendency to form its anhydride.
Wiktionary
xeronic
a. Relating to xeronic acid or its derivatives