v. t. To provide or decorate with a frill or frills; to turn back. in crimped plaits; as, to frill a cap. [ 1913 Webster ]

n. [ See Frill, v. i. ]. (Zool.) (a) A ruffing of a bird's feathers from cold. (b) A ruffle, consisting of a fold of membrane, of hairs, or of feathers, around the neck of an animal. See Frilled lizard (below). (c) A similar ruffle around the legs or other appendages of animals. (d) A ruffled varex or fold on certain shells. [ 1913 Webster ]

2. A border or edging secured at one edge and left free at the other, usually fluted or crimped like a very narrow flounce. [ 1913 Webster ]

3. Hence: Something superfluous, such as an ornament, or an additional function on a device or in a system not essential to the basic operation. -- Commonly used in the phrase no frills, used adjectively to indicate a fully functional but economical device or service; as, an economical no-frills airline. [ PJC ]

v. i. [ imp. & p. p. frilled p. pr. & vb. n. frilling. ] [ OF. friller, fr. L. frigidulus somewhat cold, dim. of frigidus cold; akin to F. frileux chilly. ] 1. To shake or shiver as with cold; as, the hawk frills. Johnson. [ 1913 Webster ]

2. (Photog.) To wrinkle; -- said of the gelatin film. [ 1913 Webster ]

a. Furnished with a frill or frills. [ 1913 Webster ]

Frilled lizard (Zool.), a large Australian lizard (Chlamydosaurus Kingii) about three feet long, which has a large, erectile frill on each side of the neck. [ 1913 Webster ]

n. Ornamental objects of no great value.
Syn. -- falderal, folderol, gimcrackery, gimcracks, nonsense, trumpery. [ WordNet 1.5 ]

adj. Having decorative ruffles or frills.
Syn. -- frilled, ruffled. [ WordNet 1.5 ]