1. A not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis
   "The prenatal screening indicated a high risk of schistorrhachis";
   - spina bifida, rachischisis

Derived forms: schistorrhachises

Type of: birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disease, congenital disorder