peneplain

American  

[pee-nuh-pleyn, pee-nuh-pleyn] / ˈpi nəˌpleɪn, ˌpi nəˈpleɪn /

Or peneplane

noun

Geology.

1. an area reduced almost to a plain by erosion.

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peneplain British  

/ ˈpiːnɪˌpleɪn, ˌpiːnɪˈpleɪn /

noun

1. a relatively flat land surface produced by a long period of erosion

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Other Word Forms

• peneplanation noun

Etymology

Origin of peneplain

First recorded in 1885–90; pene- + plain ¹

Example Sentences

This cycle had not been completed, that is, the work of base-leveling had not been altogether accomplished, when the peneplain was elevated, and the cycle, though still incomplete, brought to a close.

From Project Gutenberg

The suggestion has been offered that the northern portion of the Coast Range is a dissected peneplain.

From Project Gutenberg

On the other hand, the northwest-southeast drainage lines across the strike of formations, coincide with the slope toward the sea of the uplifted peneplain whose dissected surface is represented by the crests of the uplands.

From Project Gutenberg

This surface, or “peneplain,” was probably the result of denudation working away the beds almost to sea-level.

From Project Gutenberg

The final result is the reduction of the land surface to an approximate plain, called a peneplain, somewhere near sea level.

From Project Gutenberg