Source : Webster's Revised Unabridged Dictionary (1913)

Fess \Fess\, Fesse \Fesse\, n. [OF. fesse, faisse, F. fasce, fr.
   L. fascia band. See {Fascia}.] (Her.)
   A band drawn horizontally across the center of an escutcheon,
   and containing in breadth the third part of it; one of the
   nine honorable ordinaries.

   {Fess point} (Her.), the exact center of the escutcheon. See
      {Escutcheon}.

Source : WordNet®

fess
     n : (heraldry) an ordinary consisting of a broad horizontal band
         across a shield [syn: {fesse}]