gnawer, gnawing animal, rodent - relatively small gnawing animals having a single pair of constantly growing incisor teeth specialized for gnawing

Cricetus, genus Cricetus - type genus of the Cricetidae: Old World hamsters

Cricetus cricetus, Eurasian hamster - a variety of hamster common to Europe and Asia

golden hamster, Mesocricetus auratus, Syrian hamster - small light-colored hamster often kept as a pet