Main Entry: obe·li·on

Pronunciation: \ō-ˈbē-lē-ˌän, -ən\

Function: noun

Inflected Form(s): plural obe·lia \-lē-ə\

: a point on the sagittal suture that lies between two small openings through the superior dorsal aspect of the parietal bones and is used in craniometric determinations

[obelion illustration]