#1 frill n. (paleontology) a bony plate that curves upward behind the skull of many ceratopsian dinosaurs. wn
#2 frill n. [ruff] an external body part consisting of feathers or hair about the neck of a bird or other animal. wn
#3 frill n. [flounce, ruffle, furbelow] a strip of pleated material used as a decoration or a trim. wn
#4 frill n. [folderal, falderol, gimcrackery, gimcrack, nonsense, trumpery] ornamental objects of no great value. wn
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