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Noun: donkey boiler  'dóng-kee'boy-lu(r)
  1. (nautical) an extra boiler (as a ship's boiler that is used while the ship is in port)
    "The crew fired up the donkey boiler to provide heat while docked";
    - auxiliary boiler

Derived forms: donkey boilers

Type of: boiler, steam boiler

Encyclopedia: Donkey boiler