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[bohl-sohn] /boʊlˈsoʊn/
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 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for bolson
Historical Examples
  • 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.

  • The vallon was therefore a cul-de-sac; or, as the trapper in his native synonyme called it, a bolson.

    The Wild Huntress Mayne Reid
  • Our guide was of opinion that this bolson would serve as a hiding-place, until we could rest our horses.

    The Wild Huntress Mayne Reid
  • Such lovely landscape was presented to our eyes in the “bolson” into which our trapper-guide had conducted us.

    The Wild Huntress Mayne Reid
British Dictionary definitions for bolson


(Southwestern US) a desert valley surrounded by mountains, with a shallow lake at the centre
Word Origin
C19: from American Spanish bolsón, from Spanish bolsa purse, from Late Latin bursa bag; see purse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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