duct | meaning of duct in Longman Dictionary of Contemporary English | LDOCE

From Longman Dictionary of Contemporary EnglishTechnology, Biology, Humanductduct /dʌkt/ noun [countable]    1 Ta pipe or tube that liquids, air, cables etc pass through  Air is heated and then circulated through large ducts to all parts of the house.2 HBa narrow tube in your body or in a plant that liquid passes through  a tear ductExamples from the Corpusduct• On the standard model, water passes via a duct under and thence through the media.• Pancreatic and bile ducts were ligated, and the abdominal wall was sutured.• According to our experience, the severity of bile duct injuries seems to be changed after laparoscopic cholecystectomy.• He said she was bound by duct tape; he recalled screaming as he carried her upstairs.• In the absence of antidiuretic hormone, the distal tubule and collecting duct are impermeable to water.• an air-conditioning duct• None of their patients had cystic duct stones.• tear ducts• The coils warm the air, and it is distributed by the duct system.• What is happening perhaps is that there is an inadvertent crossover in the duct system.Origin duct (1600-1700) Latin ductus, from ducere “to lead”