spine

US /spaɪn/
UK /spaɪn/
"spine" picture
1.

the series of vertebrae extending from the skull to the pelvis, forming the main support of the body

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He injured his spine in a fall.
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The human spine has 33 vertebrae.
:
backbonevertebral column
2.

the part of a book's cover that encloses the inner edges of the pages, usually visible when the book is on a shelf

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The title of the book is printed on its spine.
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She carefully placed the book back on the shelf, aligning its spine with the others.
3.

a ridge or projection on a bone or other structure

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The spine of the scapula is a prominent ridge.
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Many plants have sharp spines to protect themselves.
:
thornprickleridge
:
shiver down your spine