SPINE

Definition of SPINE

  1. (noun)the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  2. (noun)any sharply pointed projection
  3. (noun)a small sharp-pointed tip resembling a spike on a stem or leaf
  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
  5. (noun)a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin