noun
- The lowest point of the chin, especially the midpoint of the lower jaw bone used as a reference point in anatomy and anthropology.
Usage: technical; anatomy; anthropology
Examples
- The gnathion is a key landmark in cephalometric analysis.
- Anthropologists measure the distance from the gnathion to other facial points.
- In dental studies, the gnathion serves as a reference for jaw positioning.
- The gnathion marks the most inferior point of the mandible.
- Facial reconstruction often begins by identifying the gnathion on skeletal remains.