planation

American  

[pley-ney-shuhn, pluh-] / pleɪˈneɪ ʃən, plə- /

noun

Geology.

1. the process whereby an irregular land surface is made flat or level by erosion.

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planation British  

/ pleɪˈneɪʃən /

noun

1. the erosion of a land surface until it is basically flat

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Etymology

Origin of planation

First recorded in 1875–80; plane ¹ + -ation

Example Sentences

He said the planation Tamils’ inability to own land has forced them to live in “line houses” built during colonial times.

From Seattle Times • Dec. 3, 2021

The check for the coconut planation will be deposited, its balance given to Ms. Dionisio’s eldest sister.

From New York Times • Mar. 22, 2020

Guests must take a guided tour to visit the planation grounds and buildings, including the slave cabins, the Big House and the Children of Whitney sculptures.

From Washington Post • Jul. 26, 2018

Most of Lanai has been privately owned since the mid-1800s and was used first as a cattle ranch and then as a pineapple planation under Castle & Cooke’s Dole Foods.

From Slate • Jun. 27, 2012

After this planation was complete, a subsidence occurred; the whole area became the bed of an inland sea, and upon the planed-down granite, the debris that formed the Algonkian strata was washed.

From The Grand Canyon of Arizona; how to see it by James, George Wharton