nCircumdenudation(Geol) Denudation around or in the neighborhood of an object.
Century Dictionary and Cyclopedia
ncircumdenudationIn geology, erosion of such a character that isolated hills are left as the result of the denuding or erosive action. Such eminences usually owe their origin to the fact that the material of which they are composed is harder and better able to withstand the action of the weather than that of the strata by which they were originally surrounded.
Chambers's Twentieth Century Dictionary
nCircumdenudationsėr-kum-de-nūd-ā′shun (geol.) denudation or erosion round an elevated tract left isolated.