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