Source : Webster's Revised Unabridged Dictionary (1913)

Armorial \Ar*mo"ri*al\, a. [F. armorial, fr. armoiries arms,
   coats of arms, for armoieries, fr. OF. armoier to paint arms,
   coats of arms, fr. armes, fr. L. arma. See {Arms}, {Armory}.]
   Belonging to armor, or to the heraldic arms or escutcheon of
   a family.

         Figures with armorial signs of race and birth.
                                                  --Wordsworth.

   {Armorial bearings}. See {Arms}, 4.

Source : WordNet®

armorial
     adj : of or relating to heraldry or heraldic arms; "armorial
           bearing"