Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary


noun plural but singular or plural in construction \ˈhēvz\

Medical Definition of heaves

  1. 1:  chronic emphysema of the horse affecting the alveolae of the lungs and resulting in difficult expiration, heaving of the flanks, and a persistent cough—called also broken wind

  2. 2:  a spell of retching or vomiting

Seen and Heard

What made you want to look up heaves? Please tell us where you read or heard it (including the quote, if possible).