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

At a stage shortly preceding the base-level stage the surface would be a peneplain.

From Project Gutenberg

These rocks were upraised probably in part into lofty mountains, and then worn down by erosion nearly to sea-level, thus forming what is termed a peneplain, or a plain of subaerial denudation.

From Project Gutenberg

This plain, like all the others in this region, is a local peneplain developed on soluble limestone.

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