isoleucine [ahy-suh-loo-seen, -sin] Word Origin noun Biochemistry.
- a crystalline amino acid, C6H13O2, occurring in proteins, that is essential to the nutrition of humans and animals. Abbreviation: Ile; Symbol: I
- an essential amino acid that occurs in proteins and is formed by protein hydrolysis
isoleucine in Medicine isoleucine [ī′sə-lōō′sēn′] n.
- An essential amino acid that is isomeric with leucine.
isoleucine in Science isoleucine [ī′sə-lōō′sēn′]
- An essential amino acid. Chemical formula: C6H13NO2. See more at amino acid.