Heartburn, also known as pyrosis, cardialgia or acid indigestion, is a burning sensation in the central chest or upper central abdomen the discomfort often rises in the chest and may radiate to the neck, throat, or angle of the arm heartburn is usually due to regurgitation of gastric acid (gastric reflux) into the esophagus and is the major symptom of gastroesophageal reflux disease (gerd. Heartburn acid reflux meaning. Acid reflux: a common condition and an abnormal one in which acid in the stomach rises up into the esophagusthis occurs because the valve separating the contents of the stomach from the esophagus does not function properly see also: gerd.
heartburn acid reflux meaning
