Definition of arginine in English:


Syllabification: ar·gi·nine
Pronunciation: /ˈärjəˌnēn, -ˌnīn


  • A basic amino acid that is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
    • Chemical formula: HN=C(NH2)NH(CH2)3CH(NH2)COOH
    More example sentences
    • Guanidoacetate itself is formed in the kidney from the amino acids arginine and glycine.
    • The amino acids arginine and leucine are noncarbohydrate inducers of insulin.
    • The conditionally essential amino acid arginine has also been added to this formula to help support growth factor production.


late 19th century: from German Arginin, perhaps from Greek arginoeis 'bright-shining, white'.

More definitions of arginine

Definition of arginine in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day maelstrom
Pronunciation: ˈmālˌsträm
a powerful whirlpool in the sea