) erectile hairs along the back of a dog or other animal that rise when it is angry or alarmed.
) a long, narrow feather on the neck or saddle of a domestic rooster or other bird.
Fishing a feather wound around a fishing fly so that its filaments are splayed out. fly-fishing feathers collectively. a bunch of feathers in a military headdress.
3a steel comb for separating flax fibers.
verb [with object]
dress or comb with a hackle.