An industrial city on the River Danube in Baden-Württemberg, southern Germany; population 120,900 (est. 2006). Its Gothic cathedral has the highest church tower in the world.
Definition of Ulm in US English:
Ulm
proper nouno͝olm
An industrial city on the Danube River in Baden-Württemberg, in southern Germany; population 120,900 (est. 2006).