Hiatal hernia n. A hernia in which part of the stomach protrudes through the esophageal opening of the diaphragm. Also called hiatus hernia. [more]Hiatal hernia - Community and Resources
Noun 1. hernia resulting from the protrusion of part of the stomach through the diaphragm (synonym) hiatus hernia, diaphragmatic hernia (hypernym) hernia, herniation