coronet

Short definition from Wiktionary

Noun

1. 1
   A small crown, such as is worn by a noble.
2. 2
   The ring of tissue between a horse's hoof and its leg.
3. 3
   The traditional lowest regular commissioned officer rank in the cavalry.
4. 4
   Any of several hummingbirds in the genus Boissonneaua.
5. 5
   Any of species Craniophora ligustri of moths.