down feather

Bird's fluffy undercoat

A down feather is the soft, fluffy plumage found beneath the outer feathers of birds, prized for its insulating properties.

Down lacks the stiff central shaft of regular feathers, consisting instead of fine filaments that trap air.

It's used as filling in jackets, pillows, and comforters: a down feather pillow, goose down.

Related

thermoregulation · undercoat · keratin · insulation · rachis · comforter · goose · fluffy · airy · duckling · duvet · floating · afterfeather · cushion · plumule · delicate · nestling · bird

Categories
Opposites
feather structure and function

down featherflight feather

Wing plume for lift

contour feather · quill · tail feather · pinion

texture and material quality

down featherquill

Feather used for writing

bristle · spine · barb

insulation material weight/density

down featherlead weight

Dense metal counterbalance

heavy wool · rigid foam

Family

down, feather, downy, download, feathery, downright, downtime, downplay, downsize

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G