'Peneplain' definitions:
Definition of 'peneplain'
From: WordNet
noun
A more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements [syn: peneplain, peneplane]
Definition of 'Peneplain'
From: GCIDE
- Peneplain \Pe"ne*plain`\, n. [L. paene, pene, almost + E. plain.] (Phys. Geog.) A land surface reduced by erosion to the general condition of a plain, but not wholly devoid of hills; a base-level plain. [Webster 1913 Suppl.]