heart-burning—an embittered, resentful state of mind:
- To avoid the heart-burning that may otherwise be caused by so frank a history as I intend this to be, I am going to be nonspecific in dealing with the people…
heartburn—an uncomfortable burning sensation in the lower chest, usually caused by stomach acid:
- Heartburn is caused by stomach acid flowing back into the esophagus. Changing the diet can help to prevent heartburn.