International Scientific Vocabulary gluten + amine
First Known Use: circa 1885
Medical Definition of GLUTAMINE
: a crystalline amino acid C5H10N2O3 that is found both free and in proteins in plants and animals and that yields glutamic acid and ammonia on hydrolysis—abbreviation Gln
One of the nonessential amino acids, closely related to glutamic acid. It is especially important in the cellular metabolism of animals as the only amino acid capable of readily crossing the blood-brain barrier. It is used in medicine and biochemical research and as a feed additive.