What is the meaning of Rodent?

A mammal of the order Rodentia, characterized by long incisors that grow continuously and are worn down by gnawing.

A person lacking in maturity, social skills, technical competence or intelligence; lamer.

Gnawing; biting; corroding; applied to a destructive variety of cancer or ulcer.

third-person plural present indicative/subjunctive of roder

third-person plural future active indicative of rōdō

Source: wiktionary.org