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n. A nearly flat land surface representing an advanced stage of erosion.

n. A low-relief plain representing the final stage of fluvial erosion during times of extended tectonic stability.

n. A land surface reduced by erosion to the general condition of a plain, but not wholly devoid of hills; a base-level plain.

n. In geology, a surface reduced by erosion nearly to the condition of a plain. There are many examples of once lofty mountains, now reduced to peneplains.

To reduce by erosion to a peneplain.

n. a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements

"All the time, then, that the forces of the atmosphere are wearing down the surface of the earth to the sea level the sea is rising and its waves are producing a plain of marine denudation which rises slowly to meet the peneplain which is produced by degradation."

field    champaign    plain