colonic

a. [ Gr. &unr_;&unr_;&unr_;&unr_; saffron. ] 1. Of, pertaining to, or resembling saffron; having the color of saffron; as, croconic acid. [ 1913 Webster ]

2. Pertaining to, or derived from, croconic acid. [ 1913 Webster ]

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. [ 1913 Webster ]