acid reflux
noun
: backward flow of the acidic contents of the stomach into the esophagus that is due to malfunctioning of a sphincter at the lower end of the esophagus and that results especially in heartburn : gastroesophageal reflux
a medication for acid reflux
Acid reflux is the backflow of stomach contents into the esophagus. The feeling of acid reflux is heartburn: a mild burning sensation in the mid-chest …—
The Tennessee Tribune
The Tennessee TribuneAcid reflux occurs when the valve between your esophagus and stomach doesn't close properly, allowing stomach acid to wash back up through your esophagus …—Miriam Jones Bradley
Miriam Jones BradleyExamples of acid reflux in a Sentence
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Playford coauthored a few papers showing benefit from the supplement, including a small pilot study reporting that colostrum reduces some of the GI side effects of GLP-1 drugs like Ozempic, such as acid reflux and bloating.
—Ari Daniel, NPR, 1 June 2026
Simmons also argued that medical tests would show that Chen’s maladies are not consistent with drinking Drano, but are more likely from acid reflux.
—City News Service, Oc Register, 29 May 2026
Both short and long sleep were associated with lung conditions including COPD and asthma, as well as digestive disorders such as acid reflux and gastritis.
—Allison Palmer, Sacbee.com, 19 May 2026
Since then, the Vision Pro has been used in hundreds of different operations, including some intended to treat acid reflux and obesity.
—Mack Degeurin, Popular Science, 30 Apr. 2026
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Ari Daniel, NPR, 1 June 2026
Simmons also argued that medical tests would show that Chen’s maladies are not consistent with drinking Drano, but are more likely from acid reflux.
—City News Service, Oc Register, 29 May 2026
Both short and long sleep were associated with lung conditions including COPD and asthma, as well as digestive disorders such as acid reflux and gastritis.
—Allison Palmer, Sacbee.com, 19 May 2026
Since then, the Vision Pro has been used in hundreds of different operations, including some intended to treat acid reflux and obesity.
—Mack Degeurin, Popular Science, 30 Apr. 2026
See All Example Sentences for acid reflux
Cite this Entry
“Acid reflux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acid%20reflux. Accessed 4 Jun. 2026.
Copy CitationMedical Definition
acid reflux
noun
: backward flow of the acidic contents of the stomach into the esophagus that is due to malfunctioning of a sphincter at the lower end of the esophagus and that results especially in heartburn : gastroesophageal reflux
… people who report experiencing at least weekly symptoms of acid reflux have substantially higher risks of BE [=Barrett's esophagus] than those with less frequent episodes. Moreover, we found that symptoms of acid reflux experienced at older ages conferred substantially higher risks of BE than symptoms at younger ages …—Kylie J. Smith et al., Cancer Epidemiology, Biomarkers & Prevention
Kylie J. Smith et al., Cancer Epidemiology, Biomarkers & PreventionLove words? Need even more definitions?
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