Definition of bosphorus in English English dictionary
A strait that passes through Istanbul (formerly Constantinople) from the Black Sea to the Sea of Marmara, forming part of the traditional boundary between Europe and Asia
{i} strait which separates the Asian and European parts of Turkey, strait which connects the Black Sea to the Marmara Sea
the Bosporus the narrow sea between the European and Asian parts of Turkey, connecting the Black Sea with the Sea of Marmara. Turkish Karadeniz Bogazi Strait separating European Turkey from Asian Turkey. Connecting the Sea of Marmara with the Black Sea, it is 19 mi (31 km) long and 2.8 mi (4.4 km) at its widest. Bosporus literally means "ox ford"; it is traditionally connected with the legendary figure of Io, who in the form of a heifer crossed the Thracian Bosporus in her wanderings. Because of its strategic importance for the defense of Constantinople (modern Istanbul), which straddled its southern end, the Byzantine emperors and later the Ottoman sultans constructed fortifications along its shores. With the growing influence of the European powers in the 19th century, rules were codified governing the transit of vessels through the strait. An international commission assumed control of it after World War I; Turkey resumed control in 1936. Two of the world's longest bridges, completed in 1973 and 1988, span the strait
A strait or narrow sea between two seas, or a lake and a seas; as, the Bosporus (formerly the Thracian Bosporus) or Strait of Constantinople, between the Black Sea and Sea of Marmora; the Cimmerian Bosporus, between the Black Sea and Sea of Azof