| Term | Definition |
| an/o | anus |
| append/o, appendic/o | appendix |
| cholecyst/o | gallbladder |
| col/o, colon/o | colon |
| duoden/o | duodenum |
| esophag/o | esophagus |
| gastr/o | stomach |
| hepat/o | liver |
| ile/o | ileum |
| jejun/o | jejunum |
| or/o, stomat/o | mouth |
| pancreat/o | pancreas |
| pharyng/o | pharynx |
| proct/o | anus and rectum |
| rect/o | rectum |
| sigmoid/o | sigmoid colon |
| cholelithiasis | gallstones |
| cirrhosis | degeneration of liver cells |
| diverticulosis | abnormal condition of small pouches or sacs in the wall of intestine |
| hepatitis | inflammation of the liver |
| jaundice | yellow-orange coloration of the skin and other tissues |
| emesis | act of vomiting |
| gastrorrhagia | bleeding from stomach |
| hematemesis | vomiting blood |
| colonic polyposis | small growths protrude from the mucous membrane lining the intestine |
| anastomosis | surgical connection between two previously unconnected bowel parts, vessels, ducts |
| cholangiography | X-ray examination of the bile ducts |