gastroesophageal 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 : acid reflux see also gastroesophageal reflux disease

Examples of gastroesophageal reflux in a Sentence

Recent Examples on the Web

Most research on the health effects of late-night eating center on sleep, diabetes, obesity, and acid reflux or GERD (gastroesophageal reflux disease). —Kristen Rogers, CNN Money, 8 June 2026

Several studies have suggested that alkaline water alone could improve symptoms of gastroesophageal reflux disease (GERD). —Angelica Stabile, FOXNews.com, 6 June 2026

Two days later, a GI study indicated gastroesophageal reflux disease and possibly eosinophilic esophagitis. —Amelia Mugavero, CBS News, 1 Apr. 2026

For instance, Protonix for heartburn and gastroesophageal reflux disease is available for $200 on TrumpRx. —Sydney Lupkin, NPR, 29 Mar. 2026

Word History

First Known Use

1959, in the meaning defined above

Medical Definition

gastroesophageal 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 : acid reflux

—abbreviation GER see also gastroesophageal reflux disease