I. -nt adjective
Etymology: Latin effluent-, effluens, present participle of effluere to flow out, from ex- + fluere to flow — more at fluent
: flowing out : emanating, outgoing
the Pigeon river, whose blackened waters are flecked with white foam, effluent from the mill — American Guide Series: North Carolina
effluent vein
effluent stream
II. noun
( -s )
: something that flows out: as
a. : an outflowing branch of a main stream or lake — compare affluent
b. : liquid discharged as waste (as water used in an industrial process or sewage)