Source : Webster's Revised Unabridged Dictionary (1913)

Hemispheric \Hem`i*spher"ic\, Hemispherical \Hem`i*spher"ic*al\,
   a. [Cf. F. h['e]misph['e]rique.]
   Containing, or pertaining to, a hemisphere; as, a hemispheric
   figure or form; a hemispherical body.

Source : WordNet®

hemispheric
     adj : of or relating to the cerebral hemispheres