fur

noun

• 1the short, fine, soft hair of certain animals:a long, lean, muscular cat with sleek fur
• the skin of an animal with fur on it.
• skins with fur on them, or fabrics resembling these, used as material for making, trimming, or lining clothes:jackets made out of yak fur [as modifier]:a fur coat
• a garment made of, trimmed, or lined with fur:she pulled the fur around her
• Heraldry any of several heraldic tinctures representing animal skins in stylized form (e.g., ermine, vair).

• 2British a coating formed by hard water on the inside surface of a pipe, kettle, or other container.
• a coating formed on the tongue as a symptom of sickness.

verb (furs, furring, furred)

• 1 [as adjective, often in combination] (furred) covered with or made from a particular type of fur:silky-furred lemurs

• 2British coat or clog with a deposit:the stuff that furs up coronary arteries

• 3fix strips of wood to (floor joists, wall studs, etc.) in order to level them or increase their depth.