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Definition of ISOLEUCINE
: a crystalline essential amino acid C6H13NO2 isomeric with leucine
Origin of ISOLEUCINE
International Scientific Vocabulary
First Known Use: 1903
Medical Definition of ISOLEUCINE
: a crystalline essential amino acid C6H13NO2 isomeric with leucine—abbreviation Ile
One of the essential amino acids, present in most common proteins. It was first isolated in 1904 from fibrin, a protein involved in coagulation. It is used in medicine and biochemical research and as a nutritional supplement.