sagittal, a. [L. sagitta an arrow: cf. F. sagittal.].
Of or pertaining to an arrow; resembling an arrow; furnished with an arrowlike appendage. [1913 Webster]
Of or pertaining to the sagittal suture; in the region of the sagittal suture; rabdoidal; as, the sagittal furrow, or groove, on the inner surface of the roof of the skull. [1913 Webster]
Sagittal suture(Anat.), the suture between the two parietal bones in the top of the skull; -- called also rabdoidal suture, and interparietal suture.