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.
Marion County, West Virginia. For counties with a similar name, see Marion County (disambiguation). Marion County is a county in the U.S. state of West Virginia. As of the 2010 census, the population was 56,418. Its county seat is Fairmont. The county was named in honor of General Francis Marion (ca. 1732â1795), known to history as The Swamp Fox.