polyuria

n. excessive urination (Medicine)

Polyuria is the passage of a large volume of urine in a given period (>= 2.5L/24 hours in adult humans) [1]  It often appears with increased thrist (polydipsia), though it is possible to have one without the other."Urinary frequency" is a symptom often experienced by patients struggling with a variety of bladder conditions such as interstitial cystitis, overactive bladder, radiation cystitis, chemotherapy- induced cystitis, urinary tract infection (UTI) and eosinophilic cystitis. In these cases, patients may urinate up to 60 times a day and struggle with sleeplessness due to nocturia, frequent urination at night. Urinary frequency often occurs in patients with wounds and/or inflammation of the urothelium (aka the bladder wall) due, in part, to an activation of the alpha adrenergic nerves. Diet is a common trigger, particularly foods high in acid and/or caffeine including coffees, regular teas, green teas, sodas, diet sodas and fruit juices. Cranberry juice, for example, is devastating to most interstitial cystitis patients due to its high acid content. Patients with bladder conditions have a variety of medical therapies available and should consult with their physicians directly to help determine the cause of their urinary frequency.
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Polyuria /poly·uria/ excessive secretion of urine. pol·y·u·ri·a n. Excessive passage of urine, as in diabetes. Also called hydruria. [more]Polyuria - Community and Resources

Noun
1. renal disorder characterized by the production of large volumes of pale dilute urine; often associated with diabetes
(hypernym) kidney disease, renal disorder, nephropathy, nephrosis
(part-holonym) diabetes

excessive urination; may be a sign of diabetes.