backbone

What does backbone mean?

• noun

  the series of vertebrae forming the axis of the skeleton and protecting the spinal cord

• noun

  fortitude and determination

• noun

  a central cohesive source of support and stability

• noun

  the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved

• noun

  the part of a network that connects other networks together

Anagrams of backbone