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Term of the Day

December 11, 2025

anencephaly

anencephaly

n. congenital absence of the cranial vault (the bones forming the rear of the skull), with cerebral hemispheres completely missing or reduced to small masses. Infants born with anencephaly are usually blind, deaf, unconscious, and unable to feel pain. Anencephaly is an example of a neural tube defect. —anencephalic adj.

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