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