Douro
geographical name
Dou·ro
ˈdȯr-(ˌ)ü
variants
or Spanish Duero
river 556 miles (895 kilometers) long in southwestern Europe rising in north central Spain, flowing west to northeastern Portugal, turning south where it forms a section of the border between Spain and Portugal, then flowing west into the Atlantic
Cite this Entry
“Douro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Douro. Accessed 9 Jul. 2026.
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