MedicalTerminology DB

Meaning of gastroesophageal reflux: The backward flow of stomach acid contents into the esophagus (the tube that connects the mouth to the stomach).

Definition of gastroesophageal reflux

The backward flow of stomach acid contents into the esophagus (the tube that connects the mouth to the stomach). Also called esophageal reflux and gastric reflux.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.