The levelling and lowering of the land surface as a result of the disintegration of rock and soil by frost and ice and the removal of material loosened by such action.
Origin
1940s.
Definition of cryoplanation in US English:
cryoplanation
noun
Geomorphology
The levelling and lowering of the land surface as a result of the disintegration of rock and soil by frost and ice and the removal of material loosened by such action.