2 definitions found From WordNet (r) 2.0 [wn]: Rodentia noun: small gnawing animals: porcupines; rats; mice; squirrels; marmots; beavers; gophers; voles; hamsters; guinea pigs; agoutis [syn: {order Rodentia}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Rodentia \Ro*den"ti*a\, noun pl. [NL. See {Rodent}, adjective] (Zo["o]l.) An order of mammals having two (rarely four) large incisor teeth in each jaw, distant from the molar teeth. The rats, squirrels, rabbits, marmots, and beavers belong to this order. Note: The incisor teeth are long, curved, and strongly enameled on the outside, so as to keep a cutting edge. They have a persistent pulp and grow continuously.

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