DENUDATION
denudation, stripping, uncovering, baring, husking
(noun) the removal of covering
Source: WordNet® 3.1
Etymology
Noun
denudation (countable and uncountable, plural denudations)
The act of stripping off covering, or removing the surface; a making bare.
(geology) The laying bare of rocks by the washing away of the overlying earth, etc.; or the excavation and removal of them by the action of running water.
Source: Wiktionary
Den`u*da"tion, n. Etym: [L. denudatio: cf. F. dénudation.]
1. The act of stripping off covering, or removing the surface; a
making bare.
2. (Geol.)
Definition: The laying bare of rocks by the washing away of the overlying
earth, etc.; or the excavation and removal of them by the action of
running water.
Source: Webster’s Unabridged Dictionary 1913 Edition