noun Download 🔗Share Any of the large rodents of the genus Cuniculus (but see also its synonyms), native to Central America and South America, which have dark brown or black fur, a white or yellowish underbelly and rows of white spots along the sides. Examples : "While hiking in the rainforest of Costa Rica, we spotted a paca scurrying through the undergrowth, its spotted sides blending into the shadows. " animal biology nature Chat with AIVocabulary GamePractice Reading