noun
- Plural of gnathion; the lowest point of the chin in anatomical measurement, used as a reference landmark in craniometry and orthodontics.
Usage: technical; anatomy; orthodontics
Examples
- The orthodontist measured the distance between the gnathions to assess the patient's jaw structure.
- In cephalometric analysis, gnathions serve as key reference points for evaluating facial proportions.
- The surgeon marked the gnathions before performing the corrective jaw procedure.
- Anthropologists use gnathions when comparing skeletal remains from different populations.