vaginectomy

noun
vag·​i·​nec·​to·​my | \ ˌvaj-ə-ˈnek-tə-mē How to pronounce vaginectomy (audio) \
plural vaginectomies

Medical Definition of vaginectomy

: partial or complete surgical excision of the vagina Researches say one of every 1,000 DES daughters will develop vaginal cancer by age 36. If detected early, it is treatable, though some cases result in hysterectomies or partial vaginectomies.— Renee Graham, The Boston Globe, 30 Oct. 1988

called also colpectomy