Sagittal

1. a. In the mesial plane; mesial; as, a sagittal section of an animal.
2. a. Of or pertaining to an arrow; resembling an arrow; furnished with an arrowlike appendage.
3. a. 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.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.