頂孔矢狀縫交點
Obelion \O*be"li*on\, n. [NL., from Gr. ? a spit.] (Anat.) The region of the skull between the two parietal foramina where the closure of the sagittal suture usually begins.
obelion n : the craniometric point on the sagittal suture near the lamboid suture