What does "acid reflux" mean?

Reflux of stomach acid into the esophagus.

What is a synonym for "acid reflux"?

Common synonyms include: heartburn, pyrosis.

noun

noun ·Rare ·Advanced level

Noun

1
Reflux of stomach acid into the esophagus. uncountable, usually
"Further, in cases of hiatus hernia acid reflux was found both with and without esophagitis."
2
Heartburn, especially recurring or chronic heartburn. uncountable, usually
"Heartburn and acid reflux are the next commonest symptoms."

"Further, in cases of hiatus hernia acid reflux was found both with and without esophagitis."