a river in SW Europe, rising in N central Spain and flowing west to NE Portugal, then south as part of the border between the two countries and finally west to the Atlantic. Length: 895 km (556 miles)
Spanish name: Duero
Douro in American English
(ˈdoʊʀʊ)
river flowing from NC Spain across N Portugal into the Atlantic: c. 500 mi (805 km)