Noun breather has 2 senses
  1. breath, breather, breathing place, breathing space, breathing spell, breathing time - a short respite
    --1 is a kind of respite, rest, relief, rest period
    Derived form: verb breathe7
  2. snorkel, schnorkel, schnorchel, snorkel breather, breather - air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
    --2 is a kind of air passage, air duct, airway
    --2 is a part of submarine, pigboat, sub, U-boat
    Derived form: verb breathe1