the bed or stratum of earth or earthy material immediately under the surface soil.
- Also called undersoil.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use subsoil in a sentence
For the subsoil of the whole country is very rich, as trees of immense size and height readily demonstrate.
The physical characters of the subsoil are often of much importance to the soil itself.Elements of Agricultural Chemistry | Thomas Anderson
In such cases the benefits of subsoil ploughing and deep ploughing are conspicuous.Elements of Agricultural Chemistry | Thomas Anderson
The subsoil should be drained four or six feet below the cellar floor, and this floor is to be laid in concrete and cement.Essays In Pastoral Medicine | Austin Malley
On a subsoil of rocky character the foundation course or even the first and second courses might be unnecessary.The Private Life of the Romans | Harold Whetstone Johnston
British Dictionary definitions for subsoil
Also called: undersoil the 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
- subsoiler, noun
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
Scientific definitions for subsoil
In an ABC soil, the B horizon. The term was formerly used to mean the layer of earth below the humus or surface soil.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.