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Spinules are small spines or thorns[1] (vertebral columns) that are part of biological and manmade structures. The word originates from the Latin word spinula and is often used in botany and zoology.

The presence or absence of spinules, and their shape, can differentiate species and is used to describe and distinguish anatomical features.[2] The development of spinules in the eye may be affected by dopamine, circadian rhythms, and exposure to light or dark environments, according to a studies of controlling mechanisms.[3][4]

Liquid Crystal Displays (LCDs) can employ an Anisotropic Conducting Film (ACF) that "consists of an epoxy resin and nickel particles with spinules".[5]


  2. Entomological Society of Canada (1863-1871) Entomological Society of Canada (1951- ), Entomological Society of Ontario The Canadian entomologist p. 51 Item notes: v. 19-20 - 1887
  3. Helga Kolb, Harris Ripps, John E. Dowling, Samuel Miao-sin Wu Concepts and challenges in retinal biology: a tribute to John E. Dowling‎ page 531 2001
  4. John Simon Werner, Leo M. Chalupa The visual neurosciences Item notes: v. 2 - 2003 - 1930 pages MIT Press
  5. Interconnection Structure for Liquid Crystal Display IBM Technical Disclosure Bulletin