- a desert valley, the level of which has been raised by aggradation, usually draining into a playa.
Origin of bolson
1830–40, Americanism; < Spanish: big purse, equivalent to bols(a) purse (< Late Latin bursa; see bursa) + -ón augmentative suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bolson
Of this nature is the great arid tract known as the Bolson of Mapimi.Mexico
Charles Reginald Enock
All accounts agree in speaking of the bolson of Cuzco as well provided by nature in this respect.The Prehistoric World
E. A. Allen
The collector stated that the large tortoises had been found in only one bolson in Coahuila.
With a band of deserters, who chose him for their chief, he had taken refuge beyond the wild and waterless Bolson de Tonoro.
Barrios is drinking himself to death in jovial company away somewhere on his fundacion beyond the Bolson de Tonoro.
- Southwestern US a desert valley surrounded by mountains, with a shallow lake at the centre
C19: from American Spanish bolsón, from Spanish bolsa purse, from Late Latin bursa bag; see purse