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Falerii(fəlēr`ēī), ancient city of Etruria, Italy, W of the Tiber River. It was the capital of the Faliscans, a tribe who fought with the Etruscans against Rome. Falerii fell to Rome in 241 B.C. Modern Civita Castellana is on the site.
an ancient city of S Italy, in Latium: important in pre-Roman times