an independent state forming an enclave in Rome, with extraterritoriality over 12 churches and palaces in Rome: the only remaining Papal State; independence recognized by the Italian government in 1929; contains St Peter's Basilica and Square and the Vatican; the spiritual and administrative centre of the Roman Catholic Church. Languages: Italian and Latin. Currency: euro. Pop: 792 (2017 est). Area: 44 hectares (109 acres)