D defs.my
Entry 2 senses Webster, 1913

Harl

/(härl)/ · IPA /hɑːl/
01 n. A filamentous substance; especially, the filaments of flax or hemp.
  1. 1.
    A filamentous substance; especially, the filaments of flax or hemp.
  2. 2.
    A barb, or barbs, of a fine large feather, as of a peacock or ostrich, -- used in dressing artificial flies.