ileostomy

noun
il·​e·​os·​to·​my | \ ˌil-ē-ˈäs-tə-mē How to pronounce ileostomy (audio) \
plural ileostomies

Medical Definition of ileostomy

1 : surgical formation of an artificial anus by connecting the ileum to an opening in the abdominal wall
2 : the artificial opening made by ileostomy