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Noun: donkey engine  'dóng-kee'en-jun
  1. A locomotive for switching rolling stock in a railway yard
    - switch engine
  2. (nautical) a small engine (as one used on board ships to operate a windlass)
    - auxiliary engine

Derived forms: donkey engines

Type of: engine, loco [informal], locomotive, locomotive engine, railroad locomotive [N. Amer], railway locomotive [Brit, Cdn]

Encyclopedia: Donkey engine