ringlet

noun

1. a curled lock of hair.
2. a small ring or circle.
3. Astronomy. one of the thin or narrow rings that compose the major rings of Saturn.

noun

1. a lock of hair hanging down in a spiral curl
2. any of numerous butterflies of the genus Erebia, most of which occur in S Europe and have dark brown wings marked with small black-and-white eyespots: family Satyridae