Solothurn

geographical name

So·lo·thurn | \ ˈzō-lə-ˌtu̇rn

, ˈsō-\

Definition of Solothurn

1 canton of northwestern Switzerland area 305 square miles (790 square kilometers), population 255,000

2 commune on the Aare River in northwestern Switzerland population 12,500

Note: The commune of Solothurn serves as capital of the canton of Solothurn.