Reference meaning
backbone
Last updated
a central cohesive source of support and stability
Related source terms
Other meanings
2. noun
fortitude and determination
3. noun
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
4. 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
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 05694232-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.