- a seaport in the Peloponnesus, in W Greece, on the Gulf of Patras.
- an inlet of the Ionian Sea in the NW Peloponnesus, 10 miles (16 km) long; 25 miles (40 km) wide.
- a port in W Greece, in the NW Peloponnese on the Gulf of Patras (an inlet of the Ionian Sea): one of the richest cities in Greece until the 3rd century bc; under Turkish rule from 1458 to 1687 and from 1715 until the War of Greek Independence, which began here in 1821. Pop: 193 000 (2005 est)
