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planation: Meaning and Definition of

pla•na•tion

Pronunciation: (plā-nā'shun, plu-), [key]
— n. Geol.
  1. the process whereby an irregular land surface is made flat or level by erosion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
planate plancer
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