Home › Words › O › otocephalyotocephalyotocephaly means A lethal cephalic disorder involving the total or near-total absence of the lower jaw.EtymologyFrom oto- + -cephaly.nounA lethal cephalic disorder involving the total or near-total absence of the lower jaw.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.anencephaly 69% match — A lethal birth defect involving the abscence of a major portion of the brain and parts of the skull are missing; absence of the encephalon. vs otocephaly →acephalostomia 67% match — The congenital lack of most of the head (having only a mouth-like opening) vs otocephaly →acephalia 66% match — A birth defect in which the head is absent vs otocephaly →acephalism 65% match — The congenital lack of a head. vs otocephaly →acephalus 65% match — A fetus affected by acephaly. vs otocephaly →acephaly 64% match — The congenital lack of a head (especially in a parasitic twin) vs otocephaly →acephalocheiria 60% match — The congenital lack of a head and hands vs otocephaly →acrocephaly 60% match — The condition of suffering from a pointed skull. vs otocephaly →