Source : Webster's Revised Unabridged Dictionary (1913)

Capibara \Ca`pi*ba"ra\, n. (Zo["o]l.)
   See {Capybara}.

Source : WordNet®

capibara
     n : pig-sized tailless South American amphibious rodent with
         partly webbed feet; largest living rodent [syn: {capybara},
          {Hydrochoerus hydrochaeris}]