Byzantium

prop. n.

1.

An ancient city on the Bosporus founded by the Greeks. It was later renamed Constaninople in honor of the emperor Constantine, and renamed Istanbul by the Turks, which name it still retains.

Noun	1.	Byzantium - an ancient city on the Bosporus founded by the Greeks; site of modern Istanbul; in 330 Constantine I rebuilt the city and called it Constantinople and made it his capital
	2.	Byzantium - a continuation of the Roman Empire in the Middle East after its division in 395 Synonyms: Byzantine Empire, Eastern Roman Empire

Byzantine, Byzantine Empire, city, Eastern Roman Empire, metropolis, urban center