\Cir`cum*den`u*da"tion\, n. [Pref. circum- +
denudation.] (Geol.)
Denudation around or in the neighborhood of an object.
{Hills of circumdenudation}, hills which have been produced
   by surface erosion; the elevations which have been left,
   after denudation of a mass of high ground. --Jukes.