DUCT





Definition:

  1. [noun] a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"
    Synonyms: epithelial canal, channel

  2. [noun] a continuous tube formed by a row of elongated cells lacking intervening end walls

  3. [noun] an enclosed conduit for a fluid

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