from The Century Dictionary.

  • noun A vessel, usually a cylinder with curved ends, for collecting the steam from a boiler. Such a receptacle is almost always used on a water-tube boiler to permit a sufficient volume of steam to be accumulated so that the pressure will not fluctuate as steam is taken intermittently by the engine.
  • noun A pipe or cylinder on top of or above a steam-boiler and connected thereto by a short neck, serving as a dome to allow the flow of steam from the water to be slow enough therein to permit entrained water to settle at the bottom and be drained back.


Sorry, no etymologies found.


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