HACKLE

hackle. Hackle, n. an instrument, raw silk, skin, fly

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Hac″kle (hăk″k'l), n. [[See Heckle, and cf. Hatchel.]] 1. 1. A comb for dressing flax, raw silk, etc.; a hatchel.
2. 2. Any flimsy substance unspun, as raw silk.
3. 3. One of the peculiar, long, narrow feathers on the neck of fowls, most noticeable on the cock, — often used in making artificial flies; hence, any feather so used.
4. 4. An artificial fly for angling, made of feathers.