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arginine Line breaks: ar¦gin|ine
Pronunciation: /ˈɑːdʒɪniːn/

Definition of arginine in English:


[mass noun] Biochemistry
A basic amino acid which is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
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'.

Definition of arginine in:
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