Meanings
- uncountablemedicineA birth defect in which the mandible is missing.
The lower jaw may be absent (agnathia).
1907, Francis Delafield and T. Mitchell Prudden, A Text-Book of Pathology, eighth edition, William Wood, page 3042 more examples
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.
1831, William West, translation of Gabriel Andral, A Treatise on Pathological Anatomy, Hodges and Smith, volume 2, page 283As such, it is often accompanied by agnathia, a congenital absence of the mandible[…].
2006, Mark I. Evans et al., Prenatal Diagnosis, McGraw-Hill, →ISBN, page 240
Origin
- Ancient Greekἀ-“without”
- Englishagnathia
Derived from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”) + -ia.
More words from Ancient Greek
Full word history & related roots →Translations
French agnathie
- agnathiebirth defect
Portuguese agnatia
- agnatiabirth defect
Cite this entry
agnathia. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/agnathia
“agnathia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/agnathia. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “agnathia,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/agnathia.
Source: agnathia on Wiktionary, CC BY-SA 4.0.