Source : Webster's Revised Unabridged Dictionary (1913)

Bezant \Be*zant"\, n. [See {Byzant}.]
   1. A gold coin of Byzantium or Constantinople, varying in
      weight and value, usually (those current in England)
      between a sovereign and a half sovereign. There were also
      white or silver bezants. [Written also {besant}, {byzant},
      etc.]

   2. (Her.) A circle in or, i. e., gold, representing the gold
      coin called bezant. --Burke.

   3. A decoration of a flat surface, as of a band or belt,
      representing circular disks lapping one upon another.

Source : WordNet®

bezant
     n : a gold coin of the Byzantine Empire; widely circulated in
         Europe in the Middle Ages [syn: {bezzant}, {byzant}, {solidus}]