A chromogen in the urine that forms a red colour on the addition of nitric acid; normally exists in very minute quantities but is increased in tuberculosis and other wasting diseases, and is related to ingestion of indole compounds.

(05 Mar 2000)

urorectal fold, urorectal membrane, urorectal septum < Prev | Next > urorubin, urorubrohaematin, urosacral

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