Term: Daggerboard Image: [{"name":"images\/public\/dictionary\/daggerboard_570j9309.png","usrName":"daggerboard.png","size":33101,"type":"image\/png","thumbnail":"images\/public\/dictionary\/thdaggerboard_0nkemn9h.png","thumbnail_type":"image\/png","thumbnail_size":94176,"searchStr":"daggerboard.png,!:sStrEnd"}] Definition: A keel-like device that is manually raised and lowered vertically without using a hinge.