reflux
noun/ˈriːflʌks/
Frequency rank: #13,228 most common English word
Meaning
a backward flow of liquid, especially stomach acid into the esophagus.

Example sentence
The doctor explained that stomach acid moving upward is called reflux, and it often causes a burning sensation in the chest.
Synonyms & related words
- backflow
- regurgitation
- backup
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