#diabetes_insipidus  a rare form of diabetes resulting from a deficiency of vasopressin (the pituitary hormone that regulates the kidneys); characterized by the chronic excretion of large amounts of pale dilute urine which results in dehydration and extreme thirst
  supertype:  diabetes  any of several metabolic disorders marked by excessive urination and persistent thirst
  subtype:  nephrogenic_diabetes_insipidus  diabetes insipidus caused by a failure of the kidney to respond to normal levels of vasopressin

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