Webster's Revised Unabridged Dictionary · 1913

paca

paca (Pg. pa"kȧ; E. pā"kȧ) , noun

[Portuguese, from the native name.]

1.
(Zoology) A large burrowing South American rodent (Agouti paca syn. Cuniculus paca, formerly Cologenys paca), having blackish brown fur, with four parallel rows of white spots along its sides; the spotted cavy. It is closely allied to the agouti and the Guinea pig and is highly esteemed as food.