the world > health and disease > ill health > deformity > deformities of specific parts > [noun] > spina bifida
spina bifida1722
rachischisis1874
myelocele1875
myelomeningocele1889
syringomyelocele1890
1890 J. S. BillingsNational Med. Dict. IISyringo-myelocele.., a variety of spina bifida in which the central canal of the cord is dilated and the nerves run around the cyst.