Definition of topsoil in English:
The top layer of soil.
- Many soils have a topsoil layer that is more permeable than the clay subsoil.
- It owns recycling plants in Ayrshire, Paisley and Glasgow and supplies recycled aggregates, topsoil and subsoil.
- Ideally, a loamy textured topsoil should be brought in to increase soil grade.
Definition of topsoil in:
- British & World English dictionary