va ‧ sec ‧ to ‧ my /vəˈsektəmi/ BrE AmE noun ( plural vasectomies ) [uncountable and countable]
[ Date: 1800-1900 ; Origin: vas deferens 'sperm-carrying tube' (16-21 centuries) (from Modern Latin , 'carrying-away container' ) + -ectomy ]
a medical operation to cut the small tube through which a man’s ↑ sperm passes so that he is unable to produce children