An industrial port at the confluence of the Rhine and the Neckar rivers in Baden-Württemberg, in south-western Germany; population 307,900 (est. 2006).
Definition of Mannheim in US English:
Mannheim
proper nounˈmän-
An industrial port at the confluence of the Rhine and the Neckar rivers in Baden-Württemberg, in southwestern Germany; population 307,900 (est. 2006).