mollisol

[ mol-uh-sawl, -sol ]
/ ˈmɒl əˌsɔl, -ˌsɒl /

noun

a productive agricultural soil common to the world's grasslands, characterized by a dark surface layer rich in organic matter.
Compare brown soils.

Origin of mollisol

1970–75; < Latin molli(s) soft + -sol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019