planation

[ pley-ney-shuhn, pluh- ]

nounGeology.

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

Origin of planation

First recorded in 1875–80; plane¹ + -ation

Words Nearby planation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use planation in a sentence

These changes probably included stream capture, flooding, drought, uplifting and planation.
North American Recent Soft-shelled Turtles (Family Trionychidae) | Robert G. Webb
The planation and striation of a stone need not be confined to its under surface.
The Geography of the Region about Devils Lake and the Dalles of the Wisconsin | Rollin D. Salisbury
He may have been misled by other ministers, and for his benefit I make this ex- planation.
The Works of Robert G. Ingersoll, Vol. 5 (of 12) | Robert G. Ingersoll

British Dictionary definitions for planation

planation

/ (pleɪˈneɪʃən) /

noun

the erosion of a land surface until it is basically flat

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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