weatherboarding n 1: a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below [syn: {clapboard}, {weatherboard}, {weatherboarding}]
Weatherboarding \Weath"er*board`ing\, n. (Arch.) (a) The covering or siding of a building, formed of boards lapping over one another, to exclude rain, snow, etc. (b) Boards adapted or intended for such use. [1913 Webster]