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(Pathology) protrusion of part of the stomach through the diaphragm at the oesophageal opening
(or hia′tal) her′nia,
protrusion of part of the stomach through the esophageal cleft of the diaphragm.
A condition in which the top of the stomach protrudes through the diaphragm. It causes heartburn as control is lost over the sphincter linking the esophagus to the stomach.