from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Congenital absence of most of the brain and spinal cord.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A lethal birth defect in which most of the brain and parts of the skull are missing; absence of the encephalon.
from The Century Dictionary and Cyclopedia
- n. Same as anencephalia.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a defect in brain development resulting in small or missing brain hemispheres
From the Latin anencephalia. (Wiktionary)