/ Thesaurus / A Synonyms of anencephalia Find synonyms for: Noun1. anencephaly, anencephalia, birth defect, congenital anomaly, congenital defect, congenital disorder, congenital abnormalityusage: a defect in brain development resulting in small or missing brain hemispheresWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language