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Subsoil vs Subsurface - What's the difference?

subsoil | subsurface |

As nouns the difference between subsoil and subsurface

is that subsoil is the layer of earth that is below the topsoil while subsurface is something that is below the layer that is on the surface.

As an adjective subsurface is

below the surface.

subsoil

English

(wikipedia subsoil)

Noun

(en noun)
  • The layer of earth that is below the topsoil.

    • subsurface

    English

    Noun

    (en noun)
  • Something that is below the layer that is on the surface.
    • Before we could lay the flooring we had to lay a subsurface under it to keep it flat and supoort it.
  • (countable, mathematics) A surface which is a submanifold of another surface.

    • Adjective

    (-)
  • below the surface
    • variations in subsurface conditions
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