[ ree-fluhks ]
/ ˈriˌflʌks /


a flowing back; ebb.

Origin of reflux

First recorded in 1400–50; late Middle English word from Medieval Latin word refluxus. See re-, flux Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reflux

British Dictionary definitions for reflux


/ (ˈriːflʌks) /


chem to boil or be boiled in a vessel attached to a condenser, so that the vapour condenses and flows back into the vessel


  1. an act of refluxing
  2. (as modifier)a reflux condenser
the act or an instance of flowing back; ebb

Word Origin for reflux

C15: from Medieval Latin refluxus, from Latin refluere to flow back
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for reflux


[ rēflŭks′ ]


A flowing back.
The process of refluxing.


To boil a liquid in a vessel attached to a condenser so that the vapors continuously condense for reboiling.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.