Wiktionary (0.00 / 0 votes) Rate this definition: collective (Noun). A farm owned by a collection of people. collective (Noun). A collective noun or name. collective (Noun). A group dedicated to a particular cause or interest. collective (Adjective). Formed by gathering or collecting; gathered into a mass, sum, or body; congregated or aggregated; as, the collective body of a nation.
Stomach ulcers are the most visible sign of peptic ulcer disease. They occur when the thick layer of mucus that protects your stomach from digestive juices is reduced, thus enabling the digestive acids to eat away at the lining tissues of the stomach.
The symptoms may vary depending on the location of the ulcer: 1  Duodenal ulcers often cause a gnawing pain in the upper stomach area several hours after a meal, and patients can often relieve the pain by eating. 2  Gastric ulcers may cause a dull, aching pain, often right after a meal.