subsurface

Plural: subsurfaces

Adjective

• beneath the surface
  • "subsurface materials of the moon"

Noun

• Something that is below the layer that is on the surface.
• A surface which is a submanifold of another surface.

Adj

• Below the surface.

Examples

• Before we could lay the flooring we had to lay a subsurface under it to keep it flat and support it.

Antonyms

overhead, surface

Anagrams of subsurface