Hiatal
Pertaining to an hiatus, an opening. An hiatal hernia occurs when a part of the stomach protrudes through the diaphragm at the opening where the esophagus normally passes through the diaphragm. "Hiatus" in Latin means an opening.
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hi·a·tal hī-'āt-əl adj of, relating to, or involving a hiatus
Medical dictionary.
2011.