air duct

air ducts

Definitions of air duct
  1. noun
    a duct that provides ventilation (as in mines)
    synonyms: air passage, airway
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    an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room
    breather, schnorchel, schnorkel, snorkel, snorkel breather
    air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
    air passage consisting of a ventilation shaft through which air leaves a mine
    ventilation shaft
    a shaft in a building; serves as an air passage for ventilation
    type of:
    an enclosed conduit for a fluid
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