any surgery connecting a hollow organ to the outside of the body or to another hollow organ, as a colostomy
Origin of ostomyprobably back-formation from colostomy
Surgical construction of an artificial excretory opening, as a colostomy or ileostomy.
Origin of ostomyFrom (col)ostomy
Back-formation from colostomy.
- Alternative form of -stomy.
From -o- (“interconsonantal”) + -stomy.