pacos

{ } n. [ Sp. paco, fr. Peruv. paco. Cf. Alpaca. ] 1. (Zool.) Same as Alpaca. [ 1913 Webster ]

2. [ Peruv. paco, pacu, red, reddish, reddish ore containing silver; perh. a different word. ] (Min.) An earthy-looking ore, consisting of brown oxide of iron with minute particles of native silver. Ure. [ 1913 Webster ]