subsoil

About 0.70 uses per million words.

Meaning

1. noun The layer of earth that is below the topsoil.
2. verb To turn up the subsoil of.

Similar words

undersoil bedrock soil ground subsurface underground belowground cellar basement concourse

Often followed by

of is and water thereof to in drainage conditions

Word family

subsoiled subsoiler subsoilers subsoiling subsoils