Down (soft, fluffy immature feathers used in bedding).

plural of contour feather

(ornithology) Any feather possessing a central shaft (rachis), usually with vanes composed of barbs.

plural of flight feather

(ornithology) Any asymmetrical feather of the wing or tail of a bird.

Intentionally-implemented functionality of a product or service (typically technology) which hinders or disadvantages the user, and which the seller may charge users to not include.

plural of feather bed

plural of feather duster

The state or quality of being feathery.

A foolish person.