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See more synonyms for anencephaly on Thesaurus.com
noun Medicine/Medical.
  1. congenital absence of part or all of the brain.
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Also an·en·ce·pha·lia [an-en-suh-feyl-yuh, an-en-] /ˌæn ɛn səˈfeɪl yə, ænˌɛn-/.

Origin of anencephaly

From New Latin, dating back to 1825–35; see origin at an-1, encephal-, -y3
Related formsan·en·ce·phal·ic [an-en-suh-fal-ik, an-en-] /ˌæn ɛn səˈfæl ɪk, ænˌɛn-/, an·en·ceph·a·lous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for anencephalous

mindless, dumb, foolish, imbecile, senseless, silly, stupid, thoughtless, witless, anencephalic, anencephalous

Examples from the Web for anencephalous

Historical Examples of anencephalous

  • It has been observed likewise in anencephalous monsters (Brissot, idem).

    A System of Practical Medicine By American Authors, Vol. II


  • 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

anencephalous in Medicine


  1. Congenital absence of most of the brain and spinal cord.
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Related formsan′en•ce•phalic (-sə-fălĭk) null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.