Any ray (marine fish with a flat body and wing-like fins) of the family Pristidae, having a snout that resembles a saw.
2002, Maurice Burton, Robert Burton, Sawfish, entry in International Wildlife Encyclopedia, Volume 16: Rifleman - sea slug, page 2238,
The sawlike snout that gives the sawfish its common name may represent up to one-third of its total body length. Despite its sharklike shape, the sawfish is more closely related to rays.