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1. N a large burrowing hystricomorph rodent, Cuniculus paca, of Central and South America, having white-spotted brown fur and a large head: family Dasyproctidae 无尾刺豚鼠; 大型挖洞的豪猪型亚目啮齿目动物，产于中美洲和南美洲，长有带白点的棕毛和大头