Sāg'it-tal, a.

a. [Fr. sagittal, Sp. sagittal, It. sagittale, N. Lat. sagittalis, from Lat. sagitta, an arrow.] Pertaining to an arrow; resembling an arrow; furnished with an arrow-like appendage; as, sagittal bars.

Sagittal suture (Anat.), the median suture which unites the parietal bones of the skull. It is so called because it meets the coronal suture as an arrow meets the string of a bow. Coxe. Dunglison.