Webster's 1913 Dictionary
CROCONIC
Cro *con "ic (kr-kn "k ), a. Etym: [Gr.
1. Of, pertaining to, or resembling saffron; having the color of saffron; as, croconic acid.
2. Pertaining to, or derived from, croconic acid.
Croconic acid (Chem. ), a yellow crystalline substance, C5O3 (OH )2, obtained from potassium carboxide, rhodizonic acid, and various phenol and quinone derivatives of benzene, and forming yellow or orange colored salts.