Definition of SPINE

noun : SPINE

Source: WordNet 3.1

  • 4. (

    ) 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; "the title and author were printed on the spine of the book" ;

  • 5. (

    ) a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin ;

See more about : SPINE