Definition of

Spine

  1. (noun, body) the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  2. (noun, shape) any sharply pointed projection
  3. (noun, plant) a small sharp-pointed tip resembling a spike on a stem or leaf
  4. (noun, artifact) 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
  5. (noun, animal) a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin

via WordNet, Princeton University

Alternate forms of Spine

Derivations: spinal, spinous

Hyponyms: chine, glochid, glochidium, notochord, quill, ray

Hypernyms: aculeus, appendage, outgrowth, part, portion, process, projection, skeletal structure

Origin of the word Spine

  1. c.1400, "backbone," later "thornlike part" (1430), from O.Fr. espine (Fr. ?pine), from L. spina "backbone," originally "thorn, prickle," from PIE *spei- "sharp point" (cf. L. spica "ear of corn," O.N. spikr "nail;" see spike (n.1)). Meaning "the back of a book" is first attested 1922. Spineless in fig. sense of "irresolute" is fr… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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