Freebase(0.00 / 0 votes)Rate this definition: Effluent. Effluent is an outflowing of water or gas from a natural body of water, or from a human-made structure. Effluent, in engineering, is the stream exiting a chemical reactor.
Show map of the US. Point Marion is a borough in Fayette County, Pennsylvania, United States. The population was 1,159 at the 2010 census, down from 1,333 at the 2000 census. It is served by the Albert Gallatin Area School District.
Most early settlers of Marion County came from Kentucky and Tennessee after General Andrew Jackson established the Military Road. The first towns in the area were Pikeville, Hamilton (formerly Toll Gate), Winfield, and Guin. Old Marion County Courthouse in 1818, the first county courthouse, was constructed at Cotton Gin Port, near Amory.