Citrulline: A non-standard amino acid that is not normally present in protein. Citrulline is created in the body as an intermediate in the conversion of the amino acid ornithine to arginine in a metabolic pathway called the urea cycle.
Citrulline was first isolated from watermelon. The term citrulline was coined in 1930 from citrullus, the Latin name of the watermelon.
IMAGESBrowse our medical image collection to see of photos of autoimmune, vascular, and other systemic conditions See Images
Health Solutions From Our Sponsors