from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Suffering from the heaves or other impairment of breathing. Used of a horse.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the power of breathing impaired by the rupture, dilatation, or running together of air cells of the lungs, so that while the inspiration is by one effort, the expiration is by two; affected with pulmonary emphysema or with heaves; -- said of a horse.
from The Century Dictionary and Cyclopedia
- Diseased in the respiratory organs; having the power of breathing impaired by chest-disease: as, a wind-broken horse. Also broken-winded.
Sorry, no etymologies found.