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

Whenever George Washington was back at Mount Vernon, he worshiped at Pohick Church in Lorton, Va., six miles from his family planation.

From Washington Post • Mar. 15, 2023

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

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

And she has not left it, but continues the ex- planation of the power of Spirit up to its infinite meaning, its allness.

From Miscellaneous Writings, 1883-1896 by Eddy, Mary Baker