re·flux 
(rēflŭks′)
(rēflŭks′)n.
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·flux·ing, re·flux·es
Chemistry
Chemistry
v.tr.
To boil (a liquid) in a vessel attached to a condenser so that the vapors continuously condense for reboiling.
v.intr.
To be boiled in such a way.
[Medieval Latin reflūxus : Latin re-, re- + Latin flūxus, flow, from past participle of fluere, to flow; see bhleu- in the Appendix of Indo-European roots.]