fur

noun

• 1 [mass noun] the short, fine, soft hair of certain animals:a long, lean, muscular cat with sleek fur
• [count noun] the skin of an animal with fur on it:the trapper can sell his furs to the highest bidder
• animal skin with fur on it, or fabric resembling this, used in making or trimming garments:a Parka with nylon fur round the hood [as modifier]:a fur coat
• [count noun] a coat, cape, or similar garment made of fur:I’d just seen her sitting in her furs
• 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: fur or scale, not just in kettles but in other hidden parts of the hot-water system
• a coating formed on the tongue, typically as a symptom of sickness.

verb (furs, furring, furred)

• 1British coat or clog with a deposit:the stuff that furs up coronary arteries

• 2 (as adjective, often in combination furred) covered with or made from a particular type of fur:the black-furred rabbit

• 3level (floor or wall timbers) by inserting strips of wood: the drain could be concealed by furring out the original wall