arginine vasopressin n vasopressin in which the eighth amino acid residue in its polypeptide chain is an arginine residue (as in most mammals including humans) rather than a lysine residue (as in pigs) abbr. AVP
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(AVP) vasopressin containing arginine, the type found in most mammals; for medicinal uses, see vasopressin (def. 2). Called also argipressin.Medical dictionary. 2011.