MedanPronunciation: /ˈmɛdɑːn/Definition of Medan a city in Indonesia, in NE Sumatra near the Strait of Malacca; population 1,772,800 (est. 2009). It was established as a trading post by the Dutch in 1682 and became a leading commercial centre. Medan in other Oxford dictionaries Definition of Medan in the US English dictionary