matanza

noun2

1. •
   (US) A slaughter, as of cattle or pigs (for their hides, meat, etc), of tuna, or of people; the act of butchering or slaughtering.

   • A matanza was another busy time for the Spaniards. This was the butchering or killing of the cattle for their hides. — 1903
2. •
   (US) A place where animals are slaughtered, for their hides, meat, tallow, etc, particularly in a Latin American context; a slaughterhouse.