1. furring - Noun
2. furring - Verb
Derived from fur
of Fur
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.
The strips thus laid on.
Double planking of a ship's side.
A deposit from water, as on the inside of a boiler; also, the operation of cleaning away this deposit.
Source: Webster's dictionary