feathering

 
Pronunciation: /ˈfɛð(ə)rɪŋ/

noun

[mass noun]
  • 1the plumage of a bird or part of a bird.
  • the feathers of an arrow.
  • fringes of hairs on the appendages or body of a dog.
  • feather-like markings or structure: traditional finishes such as marbling and feathering
  • Architecture cusping in tracery.
  • 2the action of varying the angle of propellers, rotor blades, or oars so as to reduce air or water resistance.