Source : Webster's Revised Unabridged Dictionary (1913)

Basilic \Ba*sil"ic\, Basilical \Ba*sil"ic*al\, a. [See
   {Basilica}.]
   1. Royal; kingly; also, basilican.

   2. (Anat.) Pertaining to certain parts, anciently supposed to
      have a specially important function in the animal economy,
      as the middle vein of the right arm.