- congenital absence of part or all of the brain.
Also an·en·ce·pha·lia [an-en-suh-feyl-yuh, an-en-] /ˌæn ɛn səˈfeɪl yə, ænˌɛn-/.
Origin of anencephaly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for anencephalous
It has been observed likewise in anencephalous monsters (Brissot, idem).
In a former article I alluded to encephalous and anencephalous cases, where there were either no heads or heads without brains.Curiosities of Medical Experience
J. G. (John Gideon) Millingen
- Congenital absence of most of the brain and spinal cord.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.