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a backward or return flow; see also backflow and regurgitation (def. 1).
esophageal reflux (gastroesophageal reflux) reflux of the stomach contents into the esophagus.
hepatojugular reflux distention of the jugular vein induced by applying manual pressure over the liver; it suggests insufficiency of the right heart.
intrarenal reflux reflux of urine into the renal parenchyma.
vesicoureteral reflux (vesicoureteric reflux) backward flow of urine from the bladder into a ureter.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


(rē'flŭks), Do not confuse this word with reflex.
1. A backward flow.
See also: regurgitation.
2. chemistry to boil without loss of vapor because of the presence of a condenser that returns vapor as liquid.
[L. re-, back, + fluxus, a flow]
Farlex Partner Medical Dictionary © Farlex 2012


1. A flowing back; ebb.
2. Medicine Backflow, as of gastric acid into the esophagus.
3. Chemistry The process of refluxing.
v. re·fluxed, re·fluxing, re·fluxes Chemistry
To boil (a liquid) in a vessel attached to a condenser so that the vapors continuously condense for reboiling.
To be boiled in such a way.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Regurgitated gastric content. A small amount is normal in infants
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Medtalk The reversal of the normal flow of a fluid–eg, from the stomach into the esophagus. See GERD, Hepatojugular reflux. Cf Regurgitation, Vomiting Pediatrics Spit-up, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. A backward flow.
See also: regurgitation
2. chemistry To boil without loss of vapor because of the presence of a condenser that returns vapor as liquid.
[L. re-, back, + fluxus, a flow]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Movement of fluid or semifluid material in a direction opposite to the normal. Regurgitation. Examples are reflux of acid material from the STOMACH into the OESOPHAGUS, of urine from the bladder up the URETERS to the kidneys or of the abnormal movement of blood back through a leaking (incompetent) valve in the heart.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


The backward flow of a fluid in the body. Pyelonephritis is often associated with the reflux of urine from the bladder to the upper urinary tract.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


Backward flow of a substance.
[L. re-, back, + fluxus, a flow]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about reflux

Q. how do you deal with a mild case of acid reflux

A. You can start with life style changes: if you have symptoms during the night, you can try to elevate the head of your bed. You can try to avoid foods that induce reflux: fatty foods, chocolate, peppermint, and excessive alcohol. Cola, red wine, and orange juice are very acidic, so it would be wise to avoid them too, In addition to these, you can try to use a diary to reveal which kind of food causes symptoms and avoid it.

Try to refrain from lying down immediately after a meal, or eating just before bedtime. Overweight is a risk factor for reflux, so if it's relevant weight reduction is also recommended.

If you feel heartburn, you may chew in order to increase salivation and thus alleviate the symptoms. Smoking has a negative effect on salivation, so smoking cessation is also recommended.

And that's before we even mentioned OTC drugs...

Q. Baby with Gastro esophageal Reflux... I have a baby with Gastro esophageal Reflux Disease, should I worry that she will have autism? I want to clarify my doubt to be more overcautious. Kindly guide me!

Q. What is the connection between Acid Reflux and Autism? I heard about a digestive issue called Acid reflux. Some people say that this is related to Autism. What is the connection between Acid Reflux and Autism?

More discussions about reflux
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