- the bed or stratum of earth or earthy material immediately under the surface soil.
Origin of subsoil
Also called undersoil.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for subsoil
It provides that the State is entitled to retain what they call ‘subsoil rights.’Across the Mesa
I think, however, I will turn over a furrow of subsoil in it.The Professor at the Breakfast Table
Oliver Wendell Holmes (Sr.)
The strength of team depends entirely on the character of the subsoil.Farm drainage
Henry Flagg French
The subsoil is a store of inert fertility that should not remain dormant.
They improve the physical condition of the subsoil as well as the top soil.
- Also called: undersoilthe layer of soil beneath the surface soil and overlying the bedrock
- (as modifier)a subsoil plough
- (tr) to plough (land) to a depth below the normal ploughing level and so break up the subsoil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for subsoil
Online Etymology Dictionary, © 2010 Douglas Harper
- In an ABC soil, the B horizon. The term was formerly used to mean the layer of earth below the humus or surface soil.
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