n.

1. 圆形物；小圆盘；小圆窗；圆盾
2. 十三行回旋诗
3. 圆圈舞

n.

1. a small disc, especially a decorative medallion.
   ▸a circular identifying mark painted on military aircraft.
2. a variation of the rondeau (poem), consisting of three stanzas of three lines each, rhyming alternately, with the opening words repeated as a refrain after the first and third stanzas.