Cuniculus (water channel)

A cuniculus, plural cuniculi, is a diversionary water channel, used by ancient civilizations on the Italian Peninsula. As the general ancient Italian use derives from the Etruscan use, the term has a special significance of Etruscan cuniculi. The city of Veii was noted for them. The Italian community of Formello to the north of Veii was named after the numerous cuniculi there.