backbone

Senso (Inglese)

  1. (countable) The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals.
  2. (countable, figuratively) Any fundamental support, structure, or infrastructure.
  3. (figuratively, uncountable) Courage, fortitude, or strength.

Frequenza

C2
Pronunciato come (IPA)
/ˈbækˌbəʊn/
Etimologia (Inglese)

In summary

From Middle English bakbon, bakebon, bac-bon; equivalent to back + bone. Compare the semantically analogous English ridgebone.

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