I. ˈrē-ˌfləks noun
Etymology: Middle English, from Medieval Latin refluxus, from Latin re- + fluxus flow — more at flux
Date: 15th century
1.
a. : a flowing back
b. : gastroesophageal reflux
2. : a process of refluxing or condition of being refluxed
II. ri-ˈfləks, ˈrē-ˌ verb
Date: 1926
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