comb. form of L. aurum gold, used chiefly in Chem. and Min., as in auro-cephalous a., having a gold-colored head; aurochloride, a compound of auric chloride with a base, a chloro-aurate; auro-plumbiferous a., containing lead mixed with gold; auro-tellurite, an ore of tellurium containing gold and silver, SYLVANITE.
1816. P. Cleaveland, Min., 566. Auro-plumbiferous native tellurium.
1875. Bloxam, Chem., 403. Aurochloride of sodium forms reddish yellow prismatic crystals.