operasi pembuatan lubang pengeluaran melalui usus besar.

Merriam-Webster Online Dictionary
colostomy (noun)
surgical formation of an artificial anus by connecting the to an opening in the abdominal wall - colon
Colostomy (Wikipedia)
Not to be confused with Colonoscopy, Colotomy, or Corpus callosotomy.
Diagram showing a colostomy with a bag CRUK 061.svg
Diagram showing a permanent colostomy
ICD-9-CM 46.1
MeSH D003125
MedlinePlus 002942

A colostomy is a surgical procedure in which an opening (stoma) is formed by drawing the healthy end of the large intestine or colon through an incision in the anterior abdominal wall and suturing it into place. This opening, in conjunction with the attached stoma appliance, provides an alternative channel for feces to leave the body. It may be reversible or irreversible depending on the circumstances.