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spine noun

  /spaɪn/
  • (zootomy, botany, mycology) A pointed, fairly rigid protuberance or needlelike structure on an animal, shell, mushroom or plant. The botanical term technically refers to such a structure derived from a leaf or part of a leaf.
 aculeus, spīna
  • Something resembling a backbone, such as a ridge, or a long, central structure from which other structures radiate.
 columna vertebrālis, spīna
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