Paco

Full definition of paco

Noun

1. (archaic) alpaca
2. An earthy-looking ore, consisting of brown oxide of iron with minute particles of native silver.
• 1880, John Percy, Metallurgy: the art of extracting metals from their ores (page 652)Mr. Ratcliffe has sometimes found them to contain arsenic in an oxidized state, combined with ferric oxide, and once he met with a paco ore mainly composed of antimony ochre.----