Anencephaly on one side only, or involving one side much more extensively than the other. ... (05 Mar 2000) ... 
(hem″e-an″әn-sef´ә-le) congenital absence of one side of the brain.
Type: Term Pronunciation: hem′ē-an′en-sef′ă-lē Definitions: 1. Anencephaly on one side only, or involving one side much more extensively than the other.