- a closed vessel or arrangement of vessels and tubes, together with a furnace or other heat source, in which steam or other vapor is generated from water to drive turbines or engines, supply heat, process certain materials, etc.Compare fire-tube boiler, water-tube boiler.
- a vessel, as a kettle, for boiling or heating.
- British. a large tub in which laundry is boiled or sterilized.
- a tank in which water is heated and stored, as for supplying hot water.
Origin of boiler
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for boiler
“Hayden took J.W. into a boiler room in the City of Ferguson jail,” the papers charge.
She held on to the hair as Hayden led her further back into the boiler room.
They look at each other meaningfully—and repair to the boiler room for some torrid sex.‘Halt and Catch Fire’ and AMC’s Push to Reset Dramas
May 30, 2014
Workers on the iron horse shoveled coal into a boiler, which propelled the engine and sent steam and smoke billowing into the sky.Diesel Trains May Soon Use Natural Gas Instead
The Daily Beast
May 27, 2014
Patterson made the boiler plate "Palin comparison" pun and got a few generous laughs from the jubilant crowd.Where We Found Ethan Hawke, Harvey Weinstein, and Jessica Alba Last Night
November 5, 2008
It's much better you didn't recognise us; these boiler explosions are so messy.The Spenders
Harry Leon Wilson
The boiler leaked at nearly every hole where a tap had been screwed into it.
It was red from heat, and the water was bubbling away in its boiler.The Dream
The only resource he had, was to consult the boiler, and wait impatiently for Barnaby's return.Barnaby Rudge
The water was inside the tubes, and the fire of the boiler outside.
- a closed vessel or arrangement of enclosed tubes in which water is heated to supply steam to drive an engine or turbine or provide heat
- a domestic device burning solid fuel, gas, or oil, to provide hot water, esp for central heating
- a large tub for boiling laundry
- a tough old chicken for cooking by boiling
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for boiler
1540s, agent noun from boil (v.). Meaning "vessel for boiling" is from 1725; steam engine sense is from 1757.
Online Etymology Dictionary, © 2010 Douglas Harper