Bos ‧ por ‧ us, the /ˈbɒsp ə rəs $ ˈbɑːs-/ BrE AmE ( also the Bos‧pho‧rus /ˈbɒsp ə rəs, -f ə rəs $ ˈbɑːs-/)
the narrow sea between the European and Asian parts of Turkey, connecting the Black Sea with the Sea of Marmara
Bos ‧ por ‧ us, the /ˈbɒsp ə rəs $ ˈbɑːs-/ BrE AmE ( also the Bos‧pho‧rus /ˈbɒsp ə rəs, -f ə rəs $ ˈbɑːs-/)
the narrow sea between the European and Asian parts of Turkey, connecting the Black Sea with the Sea of Marmara
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012