ÜsküdarPronunciation: /ˌuːskʊˈdɑː/Definition of Üsküdar a suburb of Istanbul, on the eastern side of the Bosporus where it joins the Sea of Marmara; population 643,800 (est. 2009). Former name Scutari.Üsküdar in other Oxford dictionaries Definition of Üsküdar in the US English dictionary