duct /ˈdʌkt/
 管,輸送管,管(vt.)通過管道輸送
 duct /ˈdəkt/ 名詞
 管,導管
 duct
 導管
 Duct n.
 1. Any tube or canal by which a fluid or other substance is conducted or conveyed.
 2. Anat. One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.
 3. Bot. A large, elongated cell, either round or prismatic, usually found associated with woody fiber.
 Note: ☞ Ducts are classified, according to the character of the surface of their walls, or their structure, as annular, spiral, scalariform, etc.
 4. Guidance; direction. [Obs.]
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 duct
      n 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" [syn: epithelial
           duct, canal, channel]
      2: a continuous tube formed by a row of elongated cells lacking
         intervening end walls
      3: an enclosed conduit for a fluid