Definition of "herniation" [herniation]

• The formation of a hernia. (noun)

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• "After birth, the exposed organs are returned to the abdominal cavity and the herniation is closed via surgery."
• "Reversal of hindbrain herniation after maternal-fetal surgery for myelomeningocele subsequently impacts on brain stem function."
• "The critical thing is to detect it before the incredible pressure inside the solid box of the skull has caused herniation, that is, the forcing of the brain down through the openings at the base of the skull."