|pampa (pām'pə) Pronunciation Key
An extensive, treeless grassland of southern South America.
(from Spanish bolson, "large purse"), a semiarid, flat-floored desert valley or depression, usually centred on a playa or salt pan and entirely surrounded by hills or mountains. It is a type of basin characteristic of basin-and-range terrain. The term is usually applied only to certain basins of the southwestern United States and northern Mexico
Learn more about pampa with a free trial on Britannica.com.