backbone

[ bak-bohn ]

noun

1. Anatomy. the spinal column; spine.
2. strength of character; resolution.

   Synonyms: firmness, fortitude, decision

3. something resembling a backbone in appearance, position, or function.
4. Bookbinding. a back or bound edge of a book; spine.
5. 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.
6. Naval Architecture. the central fore-and-aft assembly of the keel and keelson, giving longitudinal strength to the bottom of a vessel.

backbone

/ ˈbækˌbəʊn /

noun

1. a nontechnical name for spinal column
2. something that resembles the spinal column in function, position, or appearance
3. strength of character; courage
4. the main or central mountain range of a country or region
5. nautical the main longitudinal members of a vessel, giving structural strength
6. computing (in computer networks) a large-capacity, high-speed central section by which other network segments are connected

backbone

/ băk′bōn′ /

1. See vertebral column

backbone

1. 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.

Other Words From

• backboned adjective
• backboneless adjective

Word History and Origins

Origin of backbone¹

1250–1300; Middle English bacbon. See back ¹, bone ( def )

Example Sentences

“He’s testing his strength and if anyone in his party has the backbone to oppose him.”

From Salon

He has pledged to deport millions of undocumented immigrants — the backbone of the U.S. labor market.

From Salon

The backbone of the cuisine, what we do, is traditional flavors.

From Salon

Their conversation forms the backbone of “Martha,” which portrays Stewart as a woman of many contradictions.

From Los Angeles Times

Small businesses are often described as the backbone of the Welsh economy and many are concerned about moves to increase employer’s NI contributions.

From BBC

Related Words

• foundation
• spine