agnathia

== English == === Etymology === Derived from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”) +‎ -ia. === Pronunciation === enPR: ăg-nāʹthi-ə, IPA(key): /æɡˈneɪ.θi.ə/ === Noun === agnathia (uncountable) (pathology) A birth defect in which the mandible is missing. 1831, William West, translation of Gabriel Andral, A Treatise on Pathological Anatomy, Hodges and Smith, volume 2, page 283: When there is agnathia, instead of the inferior maxillary bone we find nothing but a kind of tubercle formed of skin, cellular tissue, fat, and some few muscular fibres. 1907, Francis Delafield and T. Mitchell Prudden, A Text-Book of Pathology, eighth edition, William Wood, page 304 The lower jaw may be absent (agnathia). ==== Related terms ==== agnath agnatha agnathan agnathous ==== Translations ==== === References === William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “agnathia”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.