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Synonyms

acid reflux

American  
[as-id ree-fluhks] / ˈæs ɪd ˈri flʌks /

noun

Pathology.
  1. a chronic condition in which acid from the stomach flows back into the lower esophagus, causing pain or tissue damage.


acid reflux British  

noun

  1. the regurgitation of stomach acid into the oesophagus, causing heartburn

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

acid reflux Scientific  
  1. See heartburn


Etymology

Origin of acid reflux

First recorded in 1955–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Go to your doctor and explain your symptoms and don't be put off by acid reflux or anything like that.

From BBC • May 19, 2026

Between 40 and 70 percent of patients on these drugs report gastrointestinal adverse effects, like acid reflux, chronic diarrhea, and/or constipation.

From Slate • Mar. 22, 2026

Vocal cord injuries are particularly common among older adults, especially those who experience acid reflux or smoke.

From Science Daily • Jan. 2, 2026

Cowell deemed this acid reflux extravaganza to be “small.”

From Salon • May 31, 2025

The cells there aren’t built to withstand exposure to stomach acid, so in people with chronic acid reflux, they sometimes adapt by becoming more like intestinal tissue.

From Los Angeles Times • Sep. 16, 2024

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