[pley-ney-shuh n, pluh-]
- the process whereby an irregular land surface is made flat or level by erosion.
Origin of planation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for planation
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
The planation and striation of a stone need not be confined to its under surface.
These changes probably included stream capture, flooding, drought, uplifting and planation.
- 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