\Oc*cip"i*tal\, a. [Cf. F. occipital.] (Anat.)
Of or pertaining to the occiput, or back part of the head, or
to the occipital bone.
{Occipital bone} (Anat.), the bone which forms the posterior
   segment of the skull and surrounds the great foramen by
   which the spinal cord leaves the cranium. In the higher
   vertebrates it is usually composed of four bones, which
   become consolidated in the adult.
{Occipital point} (Anat.), the point of the occiput in the
   mesial plane farthest from the ophryon.

\Oc*cip"i*tal\, n. (Anat.)
The occipital bone.