reflux

noun
re·​flux | \ ˈrē-ˌfləks How to pronounce reflux (audio) \

Definition of reflux

 (Entry 1 of 2)

1a : a flowing back
2 : a process of refluxing or condition of being refluxed

reflux

verb
re·​flux | \ ri-ˈfləks How to pronounce reflux (audio) , ˈrē-ˌfləks \
refluxed; refluxing; refluxes

Definition of reflux (Entry 2 of 2)

transitive verb

: to cause to flow back or return especially : to heat such that the vapors formed condense and return to be heated again

intransitive verb

: to flow back

Examples of reflux in a Sentence

Recent Examples on the Web: Noun To tap that demand for medical services, last year TMC opened two clinics, one for gastric and reflux and another for heart palpitations, which brought the total number of outpatient specialty clinics to 154. Danielle Keeton-olsen, Forbes, 5 July 2022 This can make the beverage an alternative for those with acid reflux or indigestion issues. Olivia Munson, USA TODAY, 29 June 2022 Binging can cause weight fluctuations, or gastrointestinal issues, such as cramps or acid reflux. Stephanie H. Murray, The Week, 7 June 2022 The study found that Medicare overpaid the most for, by around $290 million, esomeprazole, which is used to treat symptoms of acid reflux disease. Christine Mui, Fortune, 21 June 2022 Moving forward, the next indication(s), (non)erosive reflux esophagitis present in some patients suffering from gastroesophageal reflux disease (GERD), may prove to be an even bigger prize for Phathom Pharmaceuticals. Joshua Cohen, Forbes, 1 June 2022 The strains are effective in treating stomach irritation caused by esophageal reflux and bacterial overgrowths. The Salt Lake Tribune, 3 June 2022 Thompson adds a touch of sugar to his tomato sauce to help customers who suffer from acid reflux. Washington Post, 18 Apr. 2022 One of many complications associated with GERD is (non)erosive reflux esophagitis. Joshua Cohen, Forbes, 1 June 2022 Recent Examples on the Web: Verb On recalling Zantac What to do for the fizzle and roil When refluxing guts sour and spoil? Meghana Keshavan, STAT, 31 Dec. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'reflux.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of reflux

Noun

15th century, in the meaning defined at sense 1a

Verb

1926, in the meaning defined at transitive sense

History and Etymology for reflux

Noun

Middle English, from Medieval Latin refluxus, from Latin re- + fluxus flow — more at flux

Learn More About reflux

Time Traveler for reflux

Time Traveler

The first known use of reflux was in the 15th century

See more words from the same century

Dictionary Entries Near reflux

refluent

reflux

reflux valve

See More Nearby Entries 

Statistics for reflux

Last Updated

23 Jul 2022

Cite this Entry

“Reflux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reflux. Accessed 13 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for reflux

reflux

noun
re·​flux | \ ˈrē-ˌfləks How to pronounce reflux (audio) \

Medical Definition of reflux

 (Entry 1 of 3)

1a : a flowing back : regurgitation reflux of gastric acid mitral valve reflux
2 : a process of refluxing or condition of being refluxed the sample was hydrolyzed … under reflux for 24 hours— T. Y. Ho et al.

reflux

adjective

Medical Definition of reflux (Entry 2 of 3)

: of, relating to, involving, or caused by reflux reflux esophagitis

reflux

transitive verb

Medical Definition of reflux (Entry 3 of 3)

: to cause to flow back or return especially : to heat (as under a reflux condenser) so that the vapors formed condense to a liquid that flows back to be heated again

intransitive verb

: to flow back damage to the esophageal mucous membrane when gastric acid refluxed into the esophagus

More from Merriam-Webster on reflux

Thesaurus: All synonyms and antonyms for reflux

Britannica.com: Encyclopedia article about reflux

WORD OF THE DAY

Test Your Vocabulary

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!