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planation

[ pley-ney-shuhn, pluh- ]

noun

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

planation

/ pleɪˈneɪʃən /

noun

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

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Word History and Origins

Origin of planation1

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

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Example Sentences

These changes probably included stream capture, flooding, drought, uplifting and planation.

The planation and striation of a stone need not be confined to its under surface.

He may have been misled by other ministers, and for his benefit I make this ex- planation.

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planateplan B

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