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
Recent Examples on the Web
Barone added that acid reflux and sleep apnea often go hand in hand, so avoiding foods that trigger acid production can be helpful.
—Sarah Garone, Health, 15 Jan. 2025
As a singer, few things scare me more than acid reflux.
—Emily Blackwood, People.com, 16 Dec. 2024
During his visits, tight jaw muscles, clenching and enamel erosion consistently show up — key indicators of acid reflux, a condition frequently linked to obstructive sleep apnea.
—Maria Sokolina, Forbes, 12 Dec. 2024
Alcohol can also lead to the overproduction of stomach acid, and conditions such as heartburn and acid reflux.
—George Monastiriakos, Newsweek, 30 Dec. 2024
See all Example Sentences for acid reflux 
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Sarah Garone, Health, 15 Jan. 2025
As a singer, few things scare me more than acid reflux.
—Emily Blackwood, People.com, 16 Dec. 2024
During his visits, tight jaw muscles, clenching and enamel erosion consistently show up — key indicators of acid reflux, a condition frequently linked to obstructive sleep apnea.
—Maria Sokolina, Forbes, 12 Dec. 2024
Alcohol can also lead to the overproduction of stomach acid, and conditions such as heartburn and acid reflux.
—George Monastiriakos, Newsweek, 30 Dec. 2024
See all Example Sentences for acid reflux
Dictionary Entries Near acid reflux
Cite this Entry
“Acid reflux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acid%20reflux. Accessed 22 Jan. 2025.
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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