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Webster's Dictionary (1865)

Dĕn'/ū-dā'tion, n.

noun

(Synop., § 130), n. [Fr. dénudation, Sp. denudacion, It. denudazione.]

  1. The act of stripping off covering; a making bare.
  2. (Geol.) The laying bare of rocks by the action of running water, removing earth, &c., from above; or the excavation of them by running waters or the action of waves. Dana.