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

Medical Dictionary

cardiac sphincter


Medical Definition of cardiac sphincter

  1. :  the somewhat thickened muscular ring surrounding the opening between the esophagus and the stomach

Seen and Heard

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