proctology

noun4

1. •
   The branch of medicine dealing with the pathology of the colon, rectum, and anus.
2. •
   Colorectal surgery as a specialty inside proctology.
3. •
   (old-fashioned) The branch of medicine dealing with the surgery of the colon, rectum, and anus.
4. •
   The department or the building of the hospital or clinic.