In some geomorphological taxonomies, a mesoregion is a natural region of intermediate size. Mesoregions may be defined on the basis of morpholithogenic conditions and spatial connection. A mesoregion is used in the regionalization of the area, it is a physical and geographic division unit, it is part of a macroregion, and consists of microregions.
See also Geomorphological division of Slovakia Geomorphological division of the Czech Republic
References