terrain

noun4

1. •
   An area of land or its particular features.

   • The race will be run over a variety of terrain, including grass and sand.
2. •
   The surface of the earth; the ground.

   • This approach requires the aircraft to stay at an altitude of at least 3000 feet MSL until crossing the VOR in order to maintain terrain clearance.
3. •
   An individual's overall state of health.
4. •
   A single, distinctive rock formation; an area having a preponderance of a particular rock or group of rocks.