subsurface

There was a vast amount of whisper and low-toned wordiness, subsurface complaint and counter-complaint.

They are supplied by a large storage battery, which consumes no air and forms the motive power during subsurface navigation.

Watching the cellar excavation for unexpected subsurface water is also an item that no experienced architect neglects.

A subsurface drain, some fifty feet long and connected with the gutter of an intersecting road, took care of the lawn.

The effect in a given region depends to a large degree on local surface and subsurface geologic conditions.