oxisol

[ok-si-sawl, -sol]

noun

a thick, weathered soil of the humid tropics, largely depleted in the minerals that promote fertility, and characteristic of the Amazon and Congo basins.

Origin of oxisol

First recorded in 1955–60; ox- + -i- + -sol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019