Dyspepsia: Indigestion. A condition characterized by upper abdominal symptoms that may include pain or discomfort, bloating, feeling of fullness with very little intake of food , feeling of unusual fullness following meals, nausea, loss of appetite, heartburn, regurgitation of food or acid, and belching. The term dyspepsia is often used for these symptoms when they are not typical of a well-described disease (for example, gastrointestinal reflux) and the cause is not clear. After a cause for the symptoms has been determined, the term dyspepsia is usually dropped in favor of a more specific diagnosis.
