n.relative large gnawing animals; distinguished from rodents by having two pairs of upper incisors specialized for gnawing
同义词：gnawing mammal
英汉双解大词典
lagomorph/ˈlæɡəʊˌmɔːf/
1.
N（名词）
any placental mammal of the order Lagomorpha, having two pairs of upper incisors specialized for gnawing: includes pikas, rabbits, and hares 兔类动物