bronco

from WordNet (r) 3.0 (2006)
bronco
    n 1: an unbroken or imperfectly broken mustang [syn: {bronco},
         {bronc}, {broncho}]
    
from The Collaborative International Dictionary of English v.0.48
Bronco \Bron"co\, n.
   Same as {Broncho}.
   [1913 Webster]
    

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