mountain chinchilla

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Noun1.mountain chinchilla - a rodent native to the mountains of Chile and Peru and now bred in captivity
gnawer, rodent - relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing
genus Lagidium, Lagidium - a genus of Chinchillidae
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Active both day and night and weighing only 7 to 15 pounds, this small wildcat feeds oil large rodents such as mountain chinchillas and viscachas.