Silesia

geographical name

Si·le·sia | \ sī-ˈlē-zh(ē-)ə

, sə-, -sh(ē-)ə\

Definition of Silesia

region of east central Europe in the valley of the upper Oder River bordering on the Sudety Mountains

Note: Formerly chiefly in Germany, Silesia is now chiefly in the eastern part of the Czech Republic and southwestern Poland.