Chalcedon

Chal·ce·don  (kls-dn, kl-sdn)

An ancient Greek city of northwest Asia Minor on the Bosporus near present-day Istanbul. It was founded in 685 b.c. and passed to Rome in a.d. 74.

Thesaurus

Noun	1.	Chalcedon - a former town on the Bosporus (now part of Istanbul); site of the Council of Chalcedon Kadikoy Constantinople, Istanbul, Stamboul, Stambul - the largest city and former capital of Turkey; rebuilt on the site of ancient Byzantium by Constantine I in the fourth century; renamed Constantinople by Constantine who made it the capital of the Byzantine Empire; now the seat of the Eastern Orthodox Church
	2.	Chalcedon - the fourth ecumenical council in 451 which defined the two natures (human and divine) of Christ Council of Chalcedon ecumenical council - (early Christian church) one of seven gatherings of bishops from around the known world under the presidency of the Pope to regulate matters of faith and morals and discipline; "the first seven councils through 787 are considered to be ecumenical councils by both the Roman Catholic church and the Eastern Orthodox church but the next fourteen councils are considered ecumenical only by the Roman Catholic church"