meaning of roundel
1. A rondelay.
2. Anything having a round form; a round figure; a circle.
3. A small circular shield, sometimes not more than a foot in diameter, used by soldiers in the fourteenth and fifteenth centuries.
4. A circular spot; a sharge in the form of a small circle.
5. A bastion of a circular form.
6. a charge in the shape of a circle; a hollow roundel