GNU Collaborative International Dictionary of English

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  1.       
    
    Tubule , n. [F. tubule, or L. tubulus, dim. of tubus a tube, a pipe.]
    1. A small pipe or fistular body; a little tube.
      1913 Webster
    2. (Anat.) A minute tube lined with glandular epithelium; as, the uriniferous tubules of the kidney.
      1913 Webster