Bridgeboard

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Bridgeboard \Bridge"board`\, n.
     1. (Arch.) A notched board to which the treads and risers of
        the steps of wooden stairs are fastened.
        [1913 Webster]
  
     2. A board or plank used as a bridge.


        [1913 Webster]