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A basic amino acid which is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
- ‘The conditionally essential amino acid arginine has also been added to this formula to help support growth factor production.’
- ‘The protein in nuts is high in arginine, an amino acid that relaxes blood vessels.’
- ‘The amino acid arginine is an immune system enhancer and powerful growth hormone stimulant.’
- ‘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.’
Late 19th century: from German Arginin, perhaps from Greek arginoeis ‘bright-shining, white’.
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