NCIt definition : A disorder characterized by excretion of large amounts of urine, accompanied by excessive
thirst. Causes include deficiency of antidiuretic hormone or failure of the kidneys
to respond to antidiuretic hormone. It may also be drug-related.;
Alternative definition : NICHD: A condition characterized by excretion of large amounts of dilute urine, accompanied
by excessive thirst. Causes include deficiency of antidiuretic hormone or failure
of the kidneys to respond to antidiuretic hormone.;