vertisol

[ vur-tuh-sawl, -sol ]
/ ˈvɜr təˌsɔl, -ˌsɒl /

noun

a clay-rich soil in which deep cracks form during the dry season.
Compare black land.

Origin of vertisol

First recorded in 1955–60; verti(cal) + -sol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019