Excretion or evacuation of urine, especially when excessive.

= urination, n.1 Originally also: an intense desire to urinate; excessive frequency or volume of urination; an instance of this (now rare, perhaps obs…

Production of an abnormally large volume of urine. In early use also: †diabetes insipidus or mellitus (of which this is a symptom) (obsolete).

= polyuria, n.

An excessive flow of watery urine; similar to Diabetes insipidus.

The condition of being aroused from sleep abnormally frequently by the need to urinate.