efflux

Etymology

From Latin effluxus, from effluō (“flow out or away”), from ex (“out of, from”) + fluō (“flow”). See also effluxion.

noun

1. The process of flowing out.
   We all age through the efflux of time.
   The efflux of matter from a boil can be painful.
   It is there that the devout affections, undisturbed by other faculties, are incessantly in efflux. 1832, Isaac Taylor, Saturday Evening, page 398
   1988, Elizabeth Sagey, Degree of closure in complex segments, Norval Smith, Harry van der Hulst (editors), Features, Segmental Structure and Harmony Processes, Part 1, Linguistic Models 12a, page 176, The remaining effluxes are pronounced without audible velar release.
   By facilitating efflux of drugs from the intracellular domain, these proteins reduce cytotoxicity and thus confer drug resistance. 2003, Awtar Krishan, “Flow cytometric monitoring of drug resistance in human tumor cells”, in R.C. Sobti, A. Krishan, editors, Advanced Flow Cytometry: Applications in Biological Research, page 55
2. That which has flowed out.
   the efflux of a boil
   Prime cheerer, light! […] Efflux divine.
   Thus between the earth and the sky there is a perpetual exchange of effluxes following a double way, ascending and descending. From the earth and sea arise effluxes, some dry, others moist. 1963, Arnold Reymond, History of the Sciences in Greco-Roman Antiquity, page 31

verb

1. (intransitive) To run out; to flow forth.
2. (intransitive, obsolete) To pass away.