Bezant

Part of speech: noun (n.)

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. 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.