from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of several gregarious, burrowing South American rodents of the genera Lagostomus and Lagidium, related to and resembling the chinchilla.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A rodent native to the Andes Mountains of South America, in the chinchilla family Chinchillidae.

from the GNU version of the Collaborative International Dictionary of English

  • n. A large burrowing South American rodent (Lagostomus trichodactylus) allied to the chinchillas, but much larger. Its fur is soft and rather long, mottled gray above, white or yellowish white beneath. There is a white band across the muzzle, and a dark band on each cheek. It inhabits grassy plains, and is noted for its extensive burrows and for heaping up miscellaneous articles at the mouth of its burrows. Called also biscacha, bizcacha, vischacha, vishatscha.

from The Century Dictionary and Cyclopedia

  • n. A South American rodent mammal, of the family Chinchillidæ and genus Lagostomus, L. trichdactylus, inhabiting the pampas, and playing there the same part in the fauna that is taken in North America by the prairie-dogs and other spermophiles.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. gregarious burrowing rodent larger than the chinchillas


from The American Heritage® Dictionary of the English Language, 4th Edition

Spanish vizcacha, from Quechua wiskácha.



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  • "'He has already shown me ... mountain viscachas, fat creatures like rabbits with a squirrel's tail that live among the boulders, piping and whistling cheerfully...'"

    --P. O'Brian, The Wine-Dark Sea, 205

    March 16, 2008

  • A burrowing rodent, Lagostomus maximus, about the size of a groundhog, inhabiting the pampas of Paraguay and Argentina, allied to the chinchilla.

    October 20, 2007