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trabecula

noun pl. trabeculae or trabeculas

  1. Anat., Zool.
    1. a small rod, bar, or bundle of fibers
    2. a small septum of fibers forming, with others of its kind, an essential part of the framework of an organ or part
  2. Bot. a rodlike structure, plate, or bar of tissue, as any of the crossbars in the peristome teeth of mosses

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See trabecula in American Heritage Dictionary 4

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