Any of various rodents of the Old World family Hystricidae or the New World family Erethizontidae, having long, sharp, erectile quills interspersed with coarse hair.

• 豪猪，箭猪东半球的豪猪科和西半球的美洲豪猪科的各种啮齿类动物之一，其粗硬的毛发中分布着长而尖的直立刺