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Definitions

backbone

[bak-bohn] / ˈbækˌboʊn /


NOUN
spinal column of vertebrate
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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It wasn’t accidental how the Appalachian Trail became my family’s backbone.

From Los Angeles Times Aug. 15, 2026

The seven thermal power plants that form the national grid's backbone have all been in operation for more than 40 years, and are in various states of disrepair.

From Barron's Aug. 2, 2026

It has enough backbone for the journey without requiring the determined chewing that makes lunch feel like a mandibular endurance event.

From Salon Jul. 30, 2026

Supporting small and medium-sized businesses has been among Vladimir Putin's declared priorities even in wartime, and framed as a backbone of resilience in the face of Western sanctions.

From BBC Jul. 22, 2026

Todd was a different matter, for I wanted to hear him tell Bragg that we had correctly followed his advice on the chemistry of the sugar-phosphate backbone.

From "Double Helix" by James D. Watson

The chart shows strongly performing security and infrastructure, which provides “critical data backbones, compute pipelines and complex protection systems that generative models actively expand rather than displace.”

From MarketWatch Jul. 27, 2026

Data centers also need to be close enough to users and network backbones to provide fast digital services.

From Science Daily Jun. 19, 2026

For decades, palaeontologists believed that the largest ocean predators were vertebrates with backbones such as fish and reptiles while invertebrates like octopuses and squid played supporting roles.

From BBC Apr. 23, 2026

Animals without a backbones evolved first, around 700 million years ago.

From The Wall Street Journal Nov. 21, 2025

At the same time, it strongly suggested that the backbones of the two chains must run in opposite directions.

From "Double Helix" by James D. Watson




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