D defs.my
Entry 3 senses Webster, 1913

Furring

· Fur·ring · IPA
01 n. The leveling of a surface, or the preparing of an air space, by means of strips of board or of larger pieces. See Fur, v. t., 3.
  1. 1.
    The leveling of a surface, or the preparing of an air space, by means of strips of board or of larger pieces. See Fur, v. t., 3.(Carp.) See: Fur
  2. 2.
    Double planking of a ship's side.(Shipbuilding)
  3. 3.
    A deposit from water, as on the inside of a boiler; also, the operation of cleaning away this deposit.