meaning of coronet
1. An ornamental or honorary headdress, having the shape and character of a crown; particularly, a crown worn as the mark of high rank lower than sovereignty. The word is used by Shakespeare to denote also a kingly crown.
2. The upper part of a horses hoof, where the horn terminates in skin.
3. The iron head of a tilting spear; a coronel.
4. margin between the skin of the pastern and the horn of the hoof