Pronunciation: (hī'dook),[key] —n. 1. one of a class of mercenary soldiers in 16th-century Hungary.
2. an outlaw who engaged in brigandage and irregular warfare against the Turks in the Slavic regions of the Ottoman Empire.
3. a male servant or attendant dressed in semimilitary Hungarian costume. Also,Heyduck,Heyduke,Heyduc,Heiduc,Heiduk.