Window Stool definition

Window Stool means the lower part of the window's shelf-like portion of the frame, inside the house, that is flat and extends inward from the bottom rail of a sash (sometimes called a "window sill").
Window Stool means the flat, horizontal molding fitted over the window sill, on the window
Window Stool means the flat, horizontal molding fitted over the window sill, on the window interior, between jambs, which comes in contact with the bottom of the rail of the lower operating sash and the window sill.