Source : Webster's Revised Unabridged Dictionary (1913)

Papal \Pa"pal\, a. [F., fr. L. papa bishop. See {Papacy}.]
   1. Of or pertaining to the pope of Rome; proceeding from the
      pope; ordered or pronounced by the pope; as, papal
      jurisdiction; a papal edict; the papal benediction.
      --Milman.

   2. Of or pertaining to the Roman Catholic Church. ``Papal
      Christians.'' --Bp. Burnet.

   {Papal cross}. See Illust. 3 of {Cross}.

   {Papal crown}, the tiara.

Source : WordNet®

papal cross
     n : a cross with three crossbars