·add. ·- A system of land forms produced by the free action of rain and streams on rocks of uniform texture.
·noun The description of a particular place, town, manor, parish, or tract of land; especially, the ...
Webster's Dictionary of the English Language
·adj Relating to autogenesis; self-generated. II. Autogenetic ·add. ·adj Pertaining to, controlled ...
·add. ·- A system of natural drainage developed by the constituent streams through headwater erosion...