Medical term for the backflow of stomach acid into the esophagus, commonly associated with heartburn and GERD.
Acid reflux can cause heartburn.
Refers specifically to reflux esophagitis, the inflammation caused by chronic acid reflux, while 胃酸逆流 is the reflux itself.
Compound of 胃酸 (stomach acid) and 逆流 (backflow, reflux).