Paestum(redirected from Poseidonia (Magna Graecia))
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An ancient city of southern Italy on the Gulf of Salerno. Founded as a Greek colony before 600 bc, it flourished as part of Magna Graecia and was taken by Rome in 273 bc.
(Placename) an ancient Greek colony on the coast of Lucania in S Italy
an ancient coastal city of Lucania, in S Italy.