Definition of "soil erosion" []

• The washing away of soil by the flow of water (noun)

WordNet. Princeton University. 2010.

• "VIRGINIA TRIOLI: I - just on this subject, before we move on to other matters, I just quickly want to ask you, there was some criticism around yesterday about the fact that the Australian Government has spent some money in the last few years on various issues around the Kokoda Track, soil erosion studies and the like; do you now wish that that money had instead been spent on important travel infrastructure?"