1) Wearing away, on a waterway
Found on
https://www.crosswordclues.com/clue/bank-erosion
Bank erosion is the wearing away of the banks of a stream or river. This is distinguished from erosion of the bed of the watercourse, which is referred to as scour. The roots of trees growing by a stream are undercut by such erosion. As the roots bind the soil tightly, they form abutments which jut out over the water. These have a significant effe...
Found on
http://en.wikipedia.org/wiki/Bank_erosion
No exact match found.
