See also: lap-pool English Alternative forms lap-pool Noun lap pool (plural lap pools) A swimming pool in the shape of a rectangle with narrow width and extended length, designed for swimming back and forth along the length in order to practice laps. 2002 May 28, Marci Alboher Nusbaum, “Travel: On the Ground in Philadelphia”, in New York Times, retrieved 24 July 2011:If you like working out, you'll appreciate its 15000-square-foot fitness center and two-lane lap pool. References “lap pool”, in OneLook Dictionary Search.Wikiwand - on Seamless Wikipedia browsing. On steroids.