名词
1. 脊椎;脊柱
Your spine is the row of bones down your back.
2. 书脊
The spine of a book is the narrow stiff part which the pages and covers are attached to.
3. (动物身体上的)棘状突起;(植物上的)棘，刺，针
Spines are also long, sharp points on an animal's body or on a plant.
1. a sharp rigid animal process or appendage
as a porcupine quill or a ridge on a bone or a ray of a fish fin
2. 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
e.g. the title and author were printed on the spine of the book
Synonym: backbone
3. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
e.g. the fall broke his back
Synonym: spinal columnvertebral columnbackbonebackrachis
4. a small sharp-pointed tip resembling a spike on a stem or leaf
Synonym: thornprickleprickerstickerspikelet
5. any sharply pointed projection