backbone

Nghĩa (Tiếng Anh)

  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.

Tính thường xuyên

C2
Phát âm là (IPA)
/ˈbækˌbəʊn/
Từ nguyên (Tiếng Anh)

In summary

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

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