Nos ‧ tra ‧ da ‧ mus /ˌnɒstrəˈdɑːməs $ ˌnɑː-/ BrE AmE
(1503–66) a French doctor and ↑ astrologer (=someone who studies the movements of the ↑ planet s and their influence on events) who wrote a book describing things that he believed would happen in the future. Some people believe that Nostradamus had special powers, and that his ideas about the future are correct.