Subsoil
/ˈsʌbsɔɪl/noun
The layer of soil beneath the topsoil.
When we were digging, we reached the subsoil which was much harder.
Often appears as...
- dig into subsoil
- reach subsoil
Usage tips
Technical
Definition 1 of 3
Pro Tip 1/3Technical Digging
Subsoil is significant in geological and construction contexts, implies challenging work.
Heavy machinery is often required to break through the subsoil.
Pro Tip 2/3Not Fertile
Unlike topsoil, subsoil is less fertile and lacks organic materials.
Roots may struggle to penetrate the subsoil due to its compact nature.
Pro Tip 3/3Soil Layers
Subsoil is part of a sequence, typically found between topsoil and bedrock.
The garden's subsoil layer was distinct from the rich topsoil above it.
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