(medicine) Spina bifida with protrusion of the spinal meninges.
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Hernial protrusion of the spinal cord and its meninges through a defect in the vertebral column.
A condition in which part of the spinal cord protrudes from between the bones of the vertebrae. The condition can result in paralysis.

Myelomeningocele. (Moore/Persaud, 2003, courtesy AE Chudley)