Category:Rodentia

Ro*den"ti*a, n. pl. Etym: [nl. See rodent, a.] (zoöl.)

Defn: 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.