ancient ruined city on the Tigris, near Baghdad, in present-day Iraq (fl. 1st cent. –5th cent. )
An ancient city of central Iraq on the Tigris River southeast of Baghdad. As the residence of Parthian kings it was renowned for its splendor. The Arabs captured and plundered the city in 637.
From Latin Ctēsiphōn, from Ancient Greek Κτησιφῶν (Ktēsiphōn).