spine

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Noun[change]

Singular
spine

Plural
spines

Gray 111 - Vertebral column.png
  1. (countable) Your spine is the set of bones down the middle of your back.
  2. (countable) Spines are sharp, pointy parts on an animal or a plant.
  3. (countable) The spine of a book is the narrow, hard part that joins the pages together.