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rock cavy (plural rock cavies)

  1. A large cavy, Kerodon rupestris, native to Brazil.
    • 1984, Mario Vargas Llosa, translated by Helen R. Lane, The War of the End of the World, Folio Society, published 2012, page 93:
      [T]hey buried him in Borracha, where they had set up a shelter, in which the Sardelinha sisters offered soup made from Spanish plums, rock cavy, and yellow lupine.