planation Hear it!

planation Definition

pla·na·tion (plā nā′s̸hən)

noun

the reduction of a land area by erosion to a nearly flat surface

Etymology: plane + -ation

planation Usage Examples

Noun used with modifier

  • ex-: He repeats this ex- planation in his commentary Matthew: The Expositor's Bible Commentary, 12 vols.