A bird's feathers are the soft covering on its body. Each feather consists of a lot of smooth hairs on each side of a thin stiff centre.

a rectangular key connecting the keyways of a shaft and a hub of a gear , pulley , etc., fastened in one keyway and free to slide in the other so that the hub can drive or be driven by the shaft at various positions along it

to cause upset or offence

feathers that form the surface plumage of a bird and determine the outer contour , including the wing and tail feathers

to make people who are angry or offended by what someone has said feel calmer and happier

the odd-coloured feather set on the shaft of an arrow at right angles to the nock

a way of cutting hair into spiky , feather-like points

any of several anthozoans with the skeleton branched into a featherlike form, as the sea pen

one of the feathers making up a bird's tail

to say or do something which upsets or annoys someone

any of the feathers that cover the body of an adult bird, apart from the wings and tail , and determine its shape

any of the large stiff feathers that cover the wings and tail of a bird and are adapted for flying

a ( distinctive and brightly coloured) feather from the peacock

any of the flight feathers growing from the manus of a bird's wing

an amaranthaceous garden plant, Amaranthus hybridus hypochondriacus, with spikes of bristly brownish-red flowers

one of the two fletchings on an arrow

any of the elongated tail feathers of certain birds, esp the domestic cock

a symbol or mark of cowardice

To ruffle someone's feathers means to cause them to become very angry , nervous , or upset .