Parry is a lunar crater that is attached to the southeast rim of the walled plain Fra Mauro. Attached to the west and southwest rim is the crater Bonpland. Due south is the small crater Tolansky, and farther to the south-southwest is Guericke. The rim is heavily worn and slightly distorted due to the co-joined formations. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.