• A waste product left over from normal chemical processes in the body and found in the urine and blood. Abnormal buildup of uric acid in the body may cause a condition called gout. Increased levels of uric acid in the blood and urine can be a side effect of chemotherapy or radiation therapy.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• A white tasteless odorless crystalline product of protein metabolism, found in the blood and urine, as well as trace amounts found in the various organs of the body. It can build up and form stones or crystals in various disease states.
  NCI
  U.S. National Cancer Institute, 2021
• An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• The final breakdown product of purine catabolism in humans is uric acid. The liver and intestinal mucosa produce most of the uric acid.
  Medscape
  WebMD, 2025
• Uric acid, a compound belonging to the purine group, and the chief form in which nitrogen, resulting from the breakdown of protein during digestion, is excreted by reptiles and birds. Small quantities of uric acid (about 0.7 gram per day) are excreted by humans as a product of the breakdown of...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025