Meaning of spinous

spi•nous

Pronunciation: (spī'nus), [key]
— adj.
  1. covered with or having spines; thorny, as a plant.
  2. armed with or bearing sharp-pointed processes, as an animal.
  3. spinelike.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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