Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Acid indigestion
Medically reviewed by Min Clinic Staff | Updated: January 2026
Acid indigestion: Excessive secretion of hydrochloric acid by the stomach cells. Medically known as hyperchlorhydria. Sometimes used interchangeably with heartburn. See also: Heartburn.