Tying off a vessel, especially the tube that transports semen.
A surgical operation to tie the vasa deferentia to prevent infection entering the epididymis from the urinary system.
The surgical tying of the vas deferens (the duct conveying sperm from the testis). This is performed to prevent infection spreading from the urinary tract causing recurrent epididymitis. It is sometimes performed at the time of prostatectomy to prevent the complication of epididymitis in the postoperative period.
Ligation of a vessel, specifically the vas deferens.