'Clapboard' definitions:

Definition of 'clapboard'

From: WordNet
noun
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]
verb
Cover with clapboards

Definition of 'Clapboard'

From: GCIDE
  • Clapboard \Clap"board\, n.
  • 1. A narrow board, thicker at one edge than at the other; -- used for weatherboarding the outside of houses. [U. S.] [1913 Webster]
  • 2. A stave for a cask. [Eng.] --Halliwell. [1913 Webster]

Definition of 'Clapboard'

From: GCIDE
  • Clapboard \Clap"board\, v. t. To cover with clapboards; as, to clapboard the sides of a house. [U. S.] --Bartlett. [1913 Webster] Clapbread