Bolson
noun
noun ·2 syllables ·Rare ·Advanced level
Definitions
Noun
- 1 A relatively flat and arid valley that is surrounded by mountains and that drains into a central basin. Southwestern, US
"In three separate bolsons in West Texas, electrical-resistivity soundings and seismic-refraction profiles have been used . . . to estimate the alluvium thickness and ground-water quality."
Example
More examples"In three separate bolsons in West Texas, electrical-resistivity soundings and seismic-refraction profiles have been used . . . to estimate the alluvium thickness and ground-water quality."
Etymology
From Spanish bolso (“a large pouch”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.