[ef.flu.ent] adj [L effluent-, effluens, prp. of effluere to flow out, fr. ex- + fluere to flow--more at fluid] (1726): flowing out: emanating, outgoing "an ~ river"
[2]effluent n (1859): something that flows out: as a: an outflowing branch of a main stream or lake b: waste material (as smoke, liquid industrial refuse, or sewage) discharged into the environment esp. when serving as a pollutant