Dar·da·nelles 
(där′dn-ĕlz) Formerly Hel·les·pont (hĕlĭ-spŏnt′)
(där′dn-ĕlz) Formerly Hel·les·pont (hĕlĭ-spŏnt′) A strait connecting the Aegean Sea with the Sea of Marmara. An important shipping channel, it marks the conventional boundary between Asia and Europe.