U`ro*e*ryth"rin (?), n. [See 1st Uro-, and Erythrin.] (Physiol. Chem.) A reddish urinary pigment, considered as the substance which gives to the urine of rheumatism its characteristic color. It also causes the red color often seen in deposits of urates.

U`ro*e*ryth"rin (?), n. [See 1st Uro-, and Erythrin.] (Physiol. Chem.) A reddish urinary pigment, considered as the substance which gives to the urine of rheumatism its characteristic color. It also causes the red color often seen in deposits of urates.