GNU Collaborative International Dictionary of English

Found 2 definitions

1.       
   Rodent , a. [L. rodens, -entis, p. pr. of rodere to gnaw. See Rase, v. t., and cf. Rostrum.]
   Gnawing; biting; corroding; (Med.) applied to a destructive variety of cancer or ulcer.
   1913 Webster
   (Zool.) (a) Gnawing. (b) Of or pertaining to the Rodentia.
   1913 Webster
         
       

2.       
   Rodent, n. (Zool.) One of the Rodentia.
   1913 Webster