A small European rodent of the genus Myoxus, of several species. They live in trees and feed on nuts, acorns, etc.; -- so called because they are usually torpid in winter.

small furry-tailed squirrel-like Old World rodent that becomes torpid in cold weather

a small mouse like rodent

a small, old world, squirrel-like rodent

Dormice are Old World mammals in the family Gliridae, part of the rodent (Rodentia) order. (This family is also variously called Myoxidae or Muscardinidae by different taxonomists). Dormice are mostly found in Europe, although some live in Africa and Asia.