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    1. duct

      英 [d?kt] 美[d?kt]
      • n. 輸送管,導(dǎo)管
      • vt. 用導(dǎo)管輸送;以導(dǎo)管封住

      英英釋意


      1. 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"
      2. a continuous tube formed by a row of elongated cells lacking intervening end walls
      3. an enclosed conduit for a fluid