The passing of urine out of the body.
Act of passing urine through the urethral opening to outside the body.
The periodic discharge of urine from the bladder through the urethra. It is initiated by voluntary relaxation of the sphincter muscle below the bladder and maintained by reflex contraction of the muscles of the bladder wall.
The act of voiding urine through the urethra. Abnormalities in urination such as difficulty in starting or stopping, greater than normal frequency, unusually small amounts of urine passed, a constant feeling of wanting to urinate or a sudden hard-to-control urge to urinate are all symptoms that suggest possible disorders of the urinary tract which merit investigation.