Desert

Desert is a type of terrain.

Description
A desert is a landscape or region that receives an extremely low amount of precipitation, less than enough to support growth of most plants. Desert are defined as areas with an average annual precipitation of less than 250 millimeters (10 in) per year, or as areas where more water is lost to evapotranspiration than falls as precipitations.

In the Köppen climate classification system, desert are classified as BWh (hot desert) or BWk (temperate desert). In the Thornthwaite climate classification system, desert would be classified as arid megathermal climates.