Noun | 1. | family Sciuridae - a mammal family of true squirrels including: ground squirrels; marmots; chipmunks; flying squirrels; spermophiles mammal family - a family of mammals Sciuromorpha, suborder Sciuromorpha - large more or less primitive rodents: squirrels; marmots; gophers; beavers; etc. squirrel - a kind of arboreal rodent having a long bushy tail genus Sciurus, Sciurus - type genus of the Sciuridae; typical moderate-sized arboreal squirrels genus Tamiasciurus, Tamiasciurus - American red squirrels Cynomys, genus Cynomys - prairie dogs genus Tamias, Tamias - chipmunks of eastern North America Eutamias, genus Eutamias - chipmunks of western America and Asia genus Glaucomys, Glaucomys - New World flying squirrels genus Marmota, Marmota - marmots Petauristidae, subfamily Petauristidae - Old World flying squirrels |