Oersted, Hans Christian Syllabification: (Oer·sted, Hans Christian)Pronunciation: /ˈərsted, ˈœrstiT͟H/Definition of Oersted, Hans Christian (1777–1851), Danish physicist. He discovered the magnetic effect of an electric current. Oersted, Hans Christian in other Oxford dictionaries Definition of Oersted, Hans Christian in the British & World English dictionary