pyrocitric

Century Dictionary and Cyclopedia

1. Obtained by subjecting citric acid to the action of heat.

Wiktionary

1. adj. chemistry Describing any of the three unsaturated dicarboxylic acids obtained by the distillation of citric acid.

GNU Webster's 1913

1. adj. (Chem.) Pertaining to, or designating, any one of three acids obtained by the distillation of citric acid, and called respectively citraconic, itaconic, and mesaconic acid.