资料来源 : Webster's Revised Unabridged Dictionary (1913)

Exoccipital \Ex`oc*cip"i*tal\, a. [Pref. ex- + occipital.]
   (Anat.)
   Pertaining to a bone or region on each side of the great
   foremen of the skull. -- n. The exoccipital bone, which often
   forms a part of the occipital in the adult, but is usually
   distinct in the young.