Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
The rodents; the largest order of placental mammals (class Eutheria), all possessing one pair of chisellike upper incisors for gnawing and flat-crowned premolars and molars for grinding; it includes the mice, rats, guinea pigs, squirrels, beavers, and many more.
[Mod. L., fr. L. rodo, pres. p. rodens, to gnaw]
Farlex Partner Medical Dictionary © Farlex 2012