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English
Etymology
Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”) + -ia.
Pronunciation
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).
2006, Mark I. Evans et al., Prenatal Diagnosis, McGraw-Hill, →ISBN, page 240:As such, it is often accompanied by agnathia, a congenital absence of the mandible[…].
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