Solum Definition
sōləm
sola, solum
noun
The altered soil or material overlying the parent material, often including the A-horizon and the B-horizon.
Webster's New World
The upper layers of a soil profile in which topsoil formation occurs.
American Heritage
Origin of Solum
-
From Latin solum (“base, bottom; soil").
From Wiktionary
Latin base, ground
From American Heritage Dictionary of the English Language, 5th Edition
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