Definition of "backbones" [backbones]

• Plural form of backbone. (noun)

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• "The new system likely will focus service along several "backbones" -- the busways and Light Rail Transit routes -- with smaller "feeder" routes taking passengers to those corridors, she said."
• "It says nothing for aggregate pipes for data center access and backbones, which is increasing on a seperate timescale."
• "If the lands of Mars are framed as are those of our own earth, there should be ridges of mountains constituting what we may term the backbones of the continent."