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duct

noun

  1. a tube, channel, or canal through which a gas or liquid moves
  2. a tube in the body for the passage of excretions or secretions: a tear duct, bile duct
  3. a conducting tubule in plant tissues, esp. one containing resin, latex, etc.
  4. a pipe or conduit through which wires or cables are run, air is circulated or exhausted, etc.

Related Forms:

See duct in American Heritage Dictionary 4

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