ef·flu·ent 
(ĕfl-ənt)
(ĕfl-ənt)adj.
Flowing out or forth.
n.
Something that flows out or forth, especially:
a. A stream flowing out of a body of water.
b. An outflow from a sewer or sewage system.
c. A discharge of liquid waste, as from a factory or nuclear plant.
[Middle English, from Latin effluēns, effluent-, present participle of effluere, to flow out : ex-, ex- + fluere, to flow; see bhleu- in the Appendix of Indo-European roots.]