Mĕtaurus

i, m.
I. the name of several rivers.
I. A river in Umbria, celebrated for the defeat of Hasdrubal, the brother of Hannibal, now Meturo, Liv. 27, 43 sq.; Sil. 8, 486.—Hence, Mĕtau-rus, a, um, adj., of Metaurus: Metaurum flumen, Hor. C. 4, 4, 38.—
II. A river in the Bruttian territory, now Marro, Plin. 3, 5, 10, § 73.
Lewis & Short
A Latin Dictionary, 1879
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