Frilled \Frilled\, a. Furnished with a frill or frills.

Frilled lizard (Zo["o]l.), a large Australian lizard (Chlamydosaurus Kingii) about three feet long, which has a large, erectile frill on each side of the neck.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Frill \Frill\, 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.

2. (Photog.) To wrinkle; -- said of the gelatin film.

Source: Webster's Revised Unabridged Dictionary (1913)