Uric

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Of or pertaining to urine; obtained from urine; as, uric acid.Uric acid, a crystalline body, present in small quantity in the urineof man and most mammals. Combined in the form of urate of ammonia, itis the chief constituent of the urine of birds and reptiles, formingthe white part. Traces of it are also found in the various organs ofthe body. It is likewise a common constituent, either as the freeacid or as a urate, of urinary or renal calculi and of the so-calledgouty concretions. From acid urines, uric acid is frequentlydeposited, on standing in a cool place, in the form of a reddishyellow sediment, nearly always crystalline. Chemically, it iscomposed of carbon, hydrogen, nitrogen, and oxygen, C5H4N4O3, and bydecomposition yields urea, among other products. It can be madesynthetically by heating together urea and glycocoll. It was formerlycalled also lithic acid, in allusion to its occurrence in stone, orcalculus.