symphysion
/sɪmˈfɪziˌɑn/
noun
- The central point of the symphysis of the lower jaw (mandible), used as a reference point in anatomy and anthropology.
- In dental X-rays, the symphysion helps identify the midline of the jaw.
- The symphysion is a key landmark for studying facial structure.
- The anthropologist measured the distance from the symphysion to the back of the skull.