boiler

noun

boil·​er ˈbȯi-lər 

1

: one that boils

2

a

: a vessel used for boiling

b

: the part of a steam generator in which water is converted into steam and which consists usually of metal shells and tubes

c

: a tank in which water is heated or hot water is stored

d

chiefly British : furnace

Examples of boiler in a Sentence

Recent Examples on the Web

There was also a concern that the co-op, without heat since May when the only working boiler was ordered shut down for safety reasons, would result in residents having to be relocated at the expense of both municipalities. —Daniel Tepfer, Connecticut Post, 3 Oct. 2024

If the pilot proves fruitful, the brewery will change the remaining boilers and gradually replace the natural gas used to make steam with renewable electricity. —Ken Silverstein, Forbes, 12 Sep. 2024

This home features modern upgrades like heated floors, a cedar shake roof installed in 2018 that has a copper drip edge, two Generac generators, an underground 2,000-gallon propane tank, new boilers and hot water generator, a central vacuum system and whole-house air conditioning added in 2020. —Brendel Hightower, Detroit Free Press, 4 Oct. 2024

Plus, the economic case for replacing furnaces and boilers with massive heat pumps is harder to make when natural gas remains relatively cheap and abundant in the United States. —Bryn Stole, The Atlantic, 24 Sep. 2024

Word History

First Known Use

circa 1540, in the meaning defined at sense 1

Phrases Containing boiler

• boiler room
• double boiler
• steam boiler

Kids Definition

boiler

noun

boil·​er ˈbȯi-lər 

1

: a container in which something is boiled

2

: a strong metal container used in making steam

3

: a tank in which water is heated or hot water is stored