- a county in SE England. 631 sq. mi. (1,635 sq. km).
- a county of S England, bordering on Greater London in the south: mainly low-lying, with the Chiltern Hills in the northwest; largely agricultural; light industries, esp in the new towns. Administrative centre: Hertford. Pop: 1 040 900 (2003 est). Area: 1634 sq km (631 sq miles)
