A river of central Italy rising in the northern Apennines and flowing about 240 km (150 mi) to the Ligurian Sea. Flooding of the Arno in 1966 caused severe damage to art treasures in Florence.
- (rare) Forming compound words with the sense of ‘lamb, sheep’.
From the stem of Ancient Greek ἀρήν (arēn, “lamb, sheep”)
- ARNO (anc. Arnus), a river of Italy which rises from the Monte Falterona, about 25 m.
- The Serchio (anc. Auser), which joined the Arno at Pisa in ancient times, now flows into the sea independently.
- The Arno is navigable for barges as far as Florence; but it is liable to sudden floods, and brings down with it large quantities of earth and stones, so that it requires careful regulation.
- The highest point in this part of the range is the Monte Falterona, above the sources of the Arno, which attains 5410 ft.
- Another lateral rsnge, the Prato Magno, which branches off from the central chain at the Monte Falterona, and separates the upper valley of the Arno from its second basin, rises to 5188 ft.; while a similar branch, called the Alpe di Catenaja, of inferior elevation, divides the upper course of the Arno from that of the Tiber.