an ancient city in Mesopotamia, on the River Tigris: founded by Seleucus Nicator in 312 bc; became the chief city of the Seleucid empire; sacked by the Romans around 162 ad
2.
an ancient city in SE Asia Minor, on the River Calycadnus (modern Göksu Nehri): captured by the Turks in the 13th century; site of present-day Silifke (Turkey)
Official name: Seleucia Tracheotis (ˌtrækɪˈəʊtɪs), Seleucia Trachea (trəˈkɪə)
3.
an ancient port in Syria, on the River Orontes: the port of Antioch, of military importance during the wars between the Ptolemies and Seleucids; largely destroyed by earthquake in 526; site of present-day Samanda? (Turkey)
Official name: Seleucia Pieria (paɪˈiːrɪə)
Seleucia in American English
(səˈluʃiə; səˈluʃə)
any of several ancient cities of SW Asia, founded by Seleucus I; esp., the chiefcity of the Seleucid Empire, on the Tigris