While the lake is the largest man-made lake around, some say it is not the state's largest lake, because some of it is in Ohio. The dam that formed the lake on the Shenango River was completed in 1934. The largest man-made lake built by the Army Corps of Engineers in Pennsylvania is Raystown Lake.
postulate (plural postulates) 1  Something assumed without proof as being self-evident or generally accepted, especially when used as a basis for an argument. 2  A fundamental element; a basic principle. ( 3 logic) An axiom. 4  A requirement; a prerequisite.
post / pÉÊst / n. a length of wood, metal, etc, fixed upright in the ground to serve as a support, marker, point of attachment, etc; either of two upright poles marking the beginning (starting post) and end (winning post) of a racecourse; the finish of a horse race; vb (transitive) (sometimes followed by up) to fasten or put up (a notice) in a public place