- Anatomy. the spinal column; spine.
- strength of character; resolution.
- something resembling a backbone in appearance, position, or function.
- Bookbinding. a back or bound edge of a book; spine.
- Nautical. a rope running along the middle of an awning, as a reinforcement and as an object to which a supporting bridle or crowfoot may be attached.
- Naval Architecture. the central fore-and-aft assembly of the keel and keelson, giving longitudinal strength to the bottom of a vessel.
- a nontechnical name for spinal column
- something that resembles the spinal column in function, position, or appearance
- strength of character; courage
- the main or central mountain range of a country or region
- nautical the main longitudinal members of a vessel, giving structural strength
- computing (in computer networks) a large-capacity, high-speed central section by which other network segments are connected
- spinal column
- See vertebral column.
The primary line(s) that connects the slower, shorter cable portions of a communications network together. (See last mile.) In larger networks, such as the Internet, a backbone consists of high-capacity, high-speed lines that can extend over great distances.