#amyelencephalus

• Amyelencephalus — A medical term from the field of teratology denoting a fetus or congenitally malformed organism structurally characterized by the total absence or severely impaired development of the spinal cord (amyelia) and the myelencephalon (embryonic medulla oblongata). This severe neurological anomaly is incompatible with life and is investigated within major neural tube defects.