S: (n) rodent, gnawer (relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing)
S: (n) mouse (any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails)
S: (n) rat (any of various long-tailed rodents similar to but larger than a mouse)
S: (n) murine (a rodent that is a member of the family Muridae)
S: (n) wood rat, wood-rat (any of various small short-tailed rodents of the northern hemisphere having soft fur grey above and white below with furred tails and large ears; some are hosts for Ixodes pacificus and Ixodes scapularis (Lyme disease ticks))
S: (n) hamster (short-tailed Old World burrowing rodent with large cheek pouches)
S: (n) gerbil, gerbille (small Old World burrowing desert rodent with long soft pale fur and hind legs adapted for leaping)
S: (n) lemming (any of various short-tailed furry-footed rodents of circumpolar distribution)
S: (n) porcupine, hedgehog (relatively large rodents with sharp erectile bristles mingled with the fur)
S: (n) jumping mouse (any of several primitive mouselike rodents with long hind legs and no cheek pouches; of woodlands of Eurasia and North America)