snub. (mining engineering). To increase the height of an undercut by means of explosives or otherwise. To check the descent of a car by the turn of a rope around a post.
Sessile polyps simply mean that the mass is flat and does not have a stalk. The other types of colonic polyps are pedunculated- these are not flat but attached to a stalk. Since a sessile colonic polyp does not have a stalk, it is usually found very close to the colonic wall lining.
Stomach polyps. Definition. Stomach polyps â also called gastric polyps â are masses of cells that form on the lining inside your stomach. These polyps are rare and usually don't cause any signs or symptoms. Stomach polyps are most often discovered when your doctor is examining you for some other reason. Most stomach polyps don't become cancerous. But certain types can increase your risk of stomach cancer in the future.