from the GNU version of the Collaborative International Dictionary of English

  • n. Same as alpaca.
  • n. An earthy-looking ore, consisting of brown oxide of iron with minute particles of native silver.

from The Century Dictionary and Cyclopedia

  • n. Same as alpaca.
  • n. In South America, a gossany ore: so called because of its brownish color, resembling that of the paco.
  • n. Same as pacu.


Sorry, no etymologies found.



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  • “She and the group of mothers she helps organize have become the only bulwark, it seems, against the irrepressible spread of paco, a highly addictive, smokable cocaine residue that has destroyed thousands of lives in Argentina and caused a cycle of drug-induced street violence never seen before in this country.�?

    The New York Times, Cheap Cocaine Floods Argentina, Devouring Lives, by Alexei Barrionuevo, February 23, 2008

    July 30, 2009