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
Drinking too much can cause side effects, including stomach irritation, slower digestion, acid reflux, tooth enamel wear, and skin irritation.
—Merve Ceylan, Health, 22 Nov. 2025
The drugs include those for mental health conditions, high blood pressure, and acid reflux.
—Tom Gavin, EverydayHealth.com, 20 Nov. 2025
But Moskovitz says there are short-term side effects to consider like bloating, acid reflux, and poor sleep due to the caffeine content.
—Korin Miller, SELF, 17 Nov. 2025
This comes about from a suite of chemical and mechanical triggers, including frequent consumption of acidic and sugary foods like soda and fruit juice, tooth grinding, aggressive brushing, acid reflux and even dry mouth.
—New Atlas, 5 Nov. 2025
See All Example Sentences for acid reflux
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Merve Ceylan, Health, 22 Nov. 2025
The drugs include those for mental health conditions, high blood pressure, and acid reflux.
—Tom Gavin, EverydayHealth.com, 20 Nov. 2025
But Moskovitz says there are short-term side effects to consider like bloating, acid reflux, and poor sleep due to the caffeine content.
—Korin Miller, SELF, 17 Nov. 2025
This comes about from a suite of chemical and mechanical triggers, including frequent consumption of acidic and sugary foods like soda and fruit juice, tooth grinding, aggressive brushing, acid reflux and even dry mouth.
—New Atlas, 5 Nov. 2025
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 26 Nov. 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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