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Noun: anencephaly  a-nun'se-fu-lee
  1. A defect in brain development resulting in small or missing brain hemispheres
    - anencephalia

Derived forms: anencephalies

See also: anencephalic

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

Encyclopedia: Anencephaly