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.
Stomach ulcers, which are also known as gastric ulcers, are painful sores in the stomach lining. Stomach ulcers are a type of peptic ulcer disease. Peptic ulcers are any ulcers that affect both the stomach and small intestines. Stomach ulcers occur when the thick layer of mucus that protects your stomach from digestive juices is reduced. This allows the digestive acids to eat away at the tissues that line the stomach, causing an ulcer. Stomach ulcers may be easily cured, but they can become severe without proper treatment.