- below the surface, especially of a body of water.
Origin of subsurface
Examples from the Web for subsurface
Historical Examples of subsurface
I'll have the subsurface part, from the sixth floor down, airsealed.Omnilingual
H. Beam Piper
At 125th Street and Lenox Avenue one of the most complicated network of subsurface structures was encountered.
A number of interesting methods of providing for subsurface structures are shown in photographs pages 51 to 54.
It also soon appeared that the German U-boats would not fight our subsurface vessels.
The submarine has two sets of engines, one for surface travel and the other for subsurface travel.