n.
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
同义词:spinal columnvertebral columnbackbonebackrachis
any sharply pointed projection
同义词:spuracantha
a small sharp-pointed tip resembling a spike on a stem or leaf
同义词:thornprickleprickerstickerspikelet
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"
同义词:backbone
a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin