weatherboard

Weath"er*board`, n. 1. (Naut.) (a) That side of a vessel which is toward the wind; the windward side. (b) A piece of plank placed in a porthole, or other opening, to keep out water. 2. (a) (Arch.) A board extending from the ridge to the eaves along the slope of the gable, and forming a close junction between the shingling of a roof and the side of the building beneath. (b) A clapboard or feather-edged board used in weatherboarding.

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