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Definition of duct:

  1. A large, elongated cell, either round or prismatic, usually found associated with woody fiber.
  2. Any tube or canal by which a fluid or other substance is conducted or conveyed.
  3. Guidance; direction.
  4. One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.


line, communication channel, canal, television channel, transmission channel, channel, distribution channel, groove, epithelial duct.

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