A horizontal structural member, such as for instance a beam or stone, that spans an opening, as between the uprights of a door or screen or between two columns or piers.
A horizontal architectural ray spanning an opening, eg between your uprights of a door or a window, and which aids the wall surface above.
A horizontal member spanning an opening, and holding the superincumbent body weight in the form of its energy in resisting crosswise break.
In architecture, a horizontal little bit of wood or rock resting from the jambs of a door or screen, or spanning any kind of open room in a wall or perhaps in a columnar building, and serving to aid superincumbent fat.
horizontal ray made use of as a finishing piece over a door or window