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.
Ulcers and pains. Symptoms of ulcers in the upper small intestine (duodenal ulcers) and in the stomach (gastric ulcers) are similar, except for when pain occurs.1  Pain from a duodenal ulcer may occur several hours after you eat (when the stomach is empty) and may improve after you eat.2  Pain also may wake you in the middle of the night.ommon ulcer symptoms include: 1  A burning, aching pain-or a pain that feels like hunger-between the navel and the breastbone. 2  The pain sometimes extends to the back. 3  Belly pain that can last from a few minutes to a few hours and that usually goes away for a while after you take an antacid or acid reducer.