topsoil
/ˈtɒpsɔɪl
/noun [mass noun]
The top layer of soil: keep all the topsoil you remove; you’re bound to find a use for it later! [count noun]: dry topsoils are typical in the western Corn Belt...
- 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.