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Dictionary definition for: Spine

1. (n) the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"

2. (n) any pointed projection

3. (n) a sharp-pointed tip on a stem or leaf

4. (n) a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin

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