monmouthshire

noun

1. a historic county in E Wales, now part of Gwent, Mid Glamorgan, and South Glamorgan.

noun

1. a county of E Wales: administratively part of England for three centuries (until 1830); mainly absorbed into the county of Gwent in 1974; reinstated with reduced boundaries in 1996: chiefly agricultural, with the Black Mountains in the N. Administrative centre: Cwmbran. Pop: 86 200 (2003 est). Area: 851 sq km (329 sq miles)