Rhodizonic
Rho`di`zon´ic
a. | 1. | (Chem.) Pertaining to, or designating, a colorless crystalline substance (called rhodizonic acid, and carboxylic acid) obtained from potassium carboxide and from certain quinones. It forms brilliant red, yellow, and purple salts. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.