Urination, also known as micturition, voiding, and, more rarely, emiction, is the process of disposing urine from the urinary bladder through the urethra to the outside of the body. In healthy adults, the process of urination is under voluntary control; in infants and individuals with neurological injury, urination may occur as an involuntary reflex. A toilet, lavatory, water closet (WC), or loo is a plumbing fixture and disposal system primarily intended for the disposal of the bodily wastes: urine and fecal matter. The word toilet can be used to refer to the fixture itself or to the room containing the fixture, especially in British English.