[1] : The Collaborative International Dictionary of English v.0.48

paco \pa"co\, pacos \pa"cos\, 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
see also:
alpaca 

Pacos >> P Words
Pacos, definition of term: Pacos
pacos_pag1.html