n.gregarious burrowing rodent larger than the chinchillas
同义词：chinchillonLagostomus maximus
英汉双解大词典
viscacha(alsovizcacha)
1.
N（名词）
a gregarious burrowing hystricomorph rodent, Lagostomus maximus, of southern South America, similar to but larger than the chinchillas: family Chinchillidae 平原兔鼠