regiopolis

thumb|right|The red circles indicate the possible regiopolises in Germany.

In Germany, a regiopolis is a city outside the core of a metropolitan area, that serves as an independent driving force for development within a larger region. The concept is used to develop midsized urban regions within regional, national and global contexts. For its surrounding region, the terms regiopolis region and regiopolitan area can be used and may be shortened to regio (similar to metropolitan area and metro).