N any marsupial of the group Polyprotodontia, characterized by four or more upper incisor teeth on each side of the jaw: includes the opossums and bandicoots 多门齿类 → compare diprotodont
N（名词） any marsupial of the group Polyprotodontia, characterized by four or more upper incisor teeth on each side of the jaw: includes the opossums and bandicoots 多门齿类 → compare diprotodont