a former county in SW Wales: created in 1974 from Cardiganshire, Pembrokeshire, and Carmarthenshire; in 1996 it was replaced by Pembrokeshire, Carmarthenshire, and Ceredigion
Dyfed in American English
(ˈdɪvəd)
county of SW Wales, on the Bristol & St. George's channels: 2,226 sq mi (5,765 sq km); pop. 344,000