ancient ruined city on the Tigris, near Baghdad, in present-day Iraq (fl. 1st cent. -5th cent. )
See Ctesiphon in American Heritage Dictionary 4
Ctes·i·phon
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.