ostomy

noun, plural os·to·mies.

1. any of various surgical procedures, as a colostomy, in which an artificial opening is made so as to permit the drainage of waste products either into an appropriate organ or to the outside of the body.

n.1957, abstracted from colostomy, etc.; ultimately from Modern Latin stoma “opening, orifice,” from Greek stoma “mouth” (see stoma). n.

1. Surgical construction of an artificial excretory opening, such as a colostomy.