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Elementary Dictionary
       

boil·er

boiler

 
pronunciation:
boI lr
part of speech: noun
definition 1: A boiler is a strong container in which water is boiled in order to create steam to be used as a source of power.
The old steam trains needed a very large boiler and a lot of wood to heat the water.
definition 2: A boiler is a tank used to heat and store a supply of water. Many houses have a boiler in their basement.
There was no hot water this morning because the boiler wasn't working.