Myelomeningocele

1 definition found

From WordNet (r) 2.0 [wn]:

  myelomeningocele
       n : a congenital defect of the central nervous system in which a
           sac containing part of the spinal cord and its meninges
           protrude through a gap in the vertebral column;
           frequently accompanied by hydrocephalus and mental
           retardation