Epipteric \Ep`ip*ter"ic\, a. [Pref. epi- + Gr. ? wing. So called
because above the wing of the sphenoid.] (Anat.)
Pertaining to a small Wormian bone sometimes present in the
human skull between the parietal and the great wing of the
sphenoid. -- n. The epipteric bone.
[1913 Webster]