Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Purposeful urination at night, after waking from sleep; typically caused by nocturnal urine volume in excess of bladder capacity or incomplete emptying of the bladder because of lower urinary tract obstruction or detrusor instability.
[noct- + G. ouron, urine]
Farlex Partner Medical Dictionary © Farlex 2012