Source : Webster's Revised Unabridged Dictionary (1913)

Panhellenic \Pan`hel*len"ic\, a. [See {Panhellenium}.]
   Of or pertaining to all Greece, or to Panhellenism; including
   all Greece, or all the Greeks.

Source : WordNet®

Panhellenic
     adj : of or relating to all the Greeks; "the Olympic Games were a
           Panhellenic celebration" [syn: {Pan-Hellenic}]