Carver is a lunar impact crater on the far side , due east of the walled plain Van der Waals. To the northeast is the crater Rosseland, and to the south-southeast lies Kozyrev. Despite some wear due to impacts, the wide inner wall of this crater still contains some terraces. There are several tiny craters along the rim edge and the inner walls, but no notable intersecting impacts. (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.