Halicarnassus Syllabification: (Hal·i·car·nas·sus)Pronunciation: /ˌhaləˈkärnəsəs/Definition of Halicarnassus an ancient Greek city on the southwestern coast of Asia Minor, at what is now the Turkish city of Bodrum. It is the site of the Mausoleum of Halicarnassus, one of the Seven Wonders of the World. Halicarnassus in other Oxford dictionaries Definition of Halicarnassus in the British & World English dictionary