Pronunciation: (fûr'ing), [key]
1. the act of lining, trimming, or clothing with fur: Furring this coat will take several weeks.
2. the fur used: What kind of furring would you like?
3. the formation of a coating of matter on something, as on the tongue: A heavy furring could mean a high fever.
4. Building Trades.
a. the attaching of strips of wood or the like (fur'ring strips") to a wall or other surface, as to provide an even support for lath or to provide an air space between the wall and plasterwork.
b. material used for this purpose.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.