n. 小圈, 小的环, 环形饰物

[医] 小环

Circlet \Cir"clet\, n.
1. A little circle; esp., an ornament for the person, having
the form of a circle; that which encircles, as a ring, a
bracelet, or a headband.

Her fair locks in circlet be enrolled. --Spenser.

2. A round body; an orb. --Pope.

Fairest of stars . . . that crown'st the smiling
morn
With thy bright circlet. --Milton.

3. A circular piece of wood put under a dish at table. [Prov.
Eng.] --Halliwell.