'Gnawer' definitions:

Definition of 'gnawer'

From: WordNet
noun
Relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing [syn: rodent, gnawer]

Definition of 'Gnawer'

From: GCIDE
  • Gnawer \Gnaw"er\, n.
  • 1. One who, or that which, gnaws. [1913 Webster]
  • 2. (Zool.) A rodent. [1913 Webster]