- a county in central England. 1,060 sq. mi. (2,630 sq. km).
- a county of N central England: contains the Peak District and several resorts with mineral springs: the geographical and ceremonial county includes the city of Derby, which became an independent unitary authority in 1997. Administrative centre: Matlock. Pop (excluding Derby city): 743 000 (2003 est). Area (excluding Derby city): 2551 sq km (985 sq miles)
