soil erosion

Definitions of soil erosion
1

n the washing away of soil by the flow of water

Types:
wash, washout
the erosive process of washing away soil or gravel by water (as from a roadway)
rain-wash
the washing away of soil or other loose material by rain
Type of:
eating away, eroding, erosion, wearing, wearing away
(geology) the mechanical process of wearing or grinding something down (as by particles washing over it)

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