1) Urologic surgery 
A urethrotomy is an operation which involves incision of the urethra, especially for relief of a stricture. It is most often performed in the outpatient setting, with the patient (usually) being discharged from the hospital or surgery center within six hours from the procedure`s inception. Urethrotomy (often referred to as DVIU, or Direct Visual ....
• (n.) An incision of the urethra, esp. incision for relief of urethral stricture.
(u″rә-throt´ә-me) incision of the urethra, usually for relief of a stricture; it may be done either through the perineum (external or perineal urethrotomy) or from within (internal urethrotomy).
Type: Term Pronunciation: yū′rĕ-throt′ŏ-mē Definitions: 1. Surgical incision of a stricture of the urethra.
an operation to cut a stricture of the urethra.