broken wind

from WordNet (r) 3.0 (2006)

broken wind
    n 1: a chronic emphysema of the horse that causes difficult
         expiration and heaving of the flanks [syn: {heaves},
         {broken wind}]

from The Collaborative International Dictionary of English v.0.48

Broken wind \Bro"ken wind`\ (Far.)
   The heaves.
   [1913 Webster]

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