noun
Rodentia; rodents
Taxonomic term for the order of mammals that includes mice, rats, squirrels, beavers, etc. Used in biological and scientific contexts.
げっ歯目にはネズミやリスが含まれる。
Rodentia includes mice and squirrels.
From げっ歯 (rodent teeth) + 目 (taxonomic order). The kanji 齧/げっ means 'gnaw' or 'bite', referring to the characteristic incisors of rodents.