
In hydrology, throughflow, a subcomponent of interflow, is the lateral unsaturated flow of water in the soil zone, where a highly permeable geologic unit overlays a less permeable geologic unit, and which returns to the surface, as return flow, prior to entering a stream or groundwater. Once water infiltrates into the soil, it is still affected by...
Found on
http://en.wikipedia.org/wiki/Throughflow

The roughly horizontal flow of water through soil or regolith.
Found on
http://www.physicalgeography.net/physgeoglos/t.html
No exact match found.