Dictionary:

sagittal

  (săj'ĭ-tl)

1. Of or relating to the suture uniting the two parietal bones of the skull.
2. Of or relating to the sagittal plane.

[New Latin sagittālis, from Latin sagitta, arrow.]

Shaped like or resembling an arrow; straight; situated in the direction of the sagittal suture. Said of an anteroposterior plane or section parallel to the long axis of the body.

1. Of or relating to the suture uniting the two parietal bones of the skull.
2. Of or relating to the sagittal plane.

1. shaped like an arrow.
2. situated in the direction of the sagittal suture; said of a plane or section parallel to the median plane of the body.

The adjective has one meaning:

Meaning #1: located in a plane that is parallel to the central plane of the sagittal suture