PACA
- a large rodent (a gnawing mammal) [n -S]
- a large rodent [n PACAS]
- large, white-spotted, almost tailless rodent, Agouti paca, of Central and South America, having features resembling a guinea pig and rabbit: valued as food
- either of two large nocturnal chiefly Central and South American rodents (Agouti paca syn. Cuniculus paca and A. taczanowskii syn. C. taczanowskii) that typically have a white-spotted brownish coat