a gnawing mammal of an order that includes rats, mice, squirrels, hamsters, porcupines, and their relatives, distinguished by strong constantly growing incisors and no canine teeth. They constitute the largest order of mammals.
啮齿目动物。
of or relating to mammals of this order
(与)啮齿目动物(有关)的。
【医】 见<Bold>RODENT ULCER</Bold>.
"mid 19th cent.: from Latin