schnorkel

Noun
  1. Air passage provided by a retractable device containing intake and exhaust pipes;
    Permits a submarine to stay submerged for extended periods of time (synset 104257960)
    is a type of: air duct, air passage, airway - a duct that provides ventilation (as in mines)
    is a part of: pigboat, sub, submarine, u-boat - a submersible warship usually armed with torpedoes
    same as: breather, schnorchel, snorkel, snorkel breather

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