meaning of frill
1. To shake or shiver as with cold; as, the hawk frills.
2. To wrinkle; -- said of the gelatin film.
3. To provide or decorate with a frill or frills; to turn back. in crimped plaits; as, to frill a cap.
4. A ruffing of a birds feathers from cold.
5. A ruffle, consisting of a fold of membrane, of hairs, or of feathers, around the neck of an animal.
6. A similar ruffle around the legs or other appendages of animals.
7. A ruffled varex or fold on certain shells.
8. A border or edging secured at one edge and left free at the other, usually fluted or crimped like a very narrow flounce.