noun
rodent
Abbreviation of 齧歯動物 (げっしどうぶつ). Used mainly in zoological contexts.
See also: 齧歯動物
齧歯は前歯が伸び続ける。
Rodents' front teeth grow continuously.
この地域には多くの齧歯が生息している。
Many rodents inhabit this area.
Full term for 'rodent'; 齧歯 is the abbreviated form used in technical contexts.
From 齧 (げつ, 'to gnaw') + 歯 (し, 'tooth'), referring to the gnawing teeth characteristic of rodents.