ŏrĭchalcum (also erroneously written aurĭchalcum, as if from aurum), i, n., = ὀρείχαλκος, yellow copper ore, also the brass made from it.
I Lit., Cic. Off. 3, 23, 92; Hor. A. P. 202: album, Verg. A. 12, 87.—It was highly prized by the ancients, Plaut. Curc. 1, 3, 46; id. Mil. 3, 1, 61; id. Ps. 2, 3, 22; cf. Plin. 34, 2, 2, § 4 (al. aurichalci). —
II Transf., of brass implements. —So of a brazen tuba, Val. Fl. 3, 61.—Of arms of brass , Stat. Th. 10, 660.