Subsoil
Pronunciation: /ˈsʌbˌsɔɪl/
Subsoil (noun)
- The layer of earth below the topsoil, usually less mixed and less rich in plants.
- Earth material under the surface that can affect building, water movement, and soil conditions.
Examples
- The roots reach the deep ground layer under the soil.
- Farmers test the deep ground layer before planting.