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hole in the heart

noun

  1. a defect of the heart in which there is an abnormal opening in any of the walls dividing the four heart chambers
  2. (as modifier)a hole-in-the-heart operation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012