Eating away and Planation

Eating away noun - Geology) the mechanical process of wearing or grinding something down (as by particles washing over it.

Planation and eating away are semantically related. In some cases you can replace term "Planation" with "Eating away", this terms are similar.

Planation noun - The process of erosion whereby a level surface is produced.

Eating away and planation are semantically related. Sometimes you can use "Eating away" instead a noun "Planation".