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

An industrial scale biomass boiler set them back over half a million dollars, compared to $100,000 to $150,000 for a more conventional option. —Mark Littler, Forbes, 27 Sep. 2024

What's next: Goldstein is designing a cafe for the space and has plans to offer studio space in an expansive room where the historic building's boilers once rumbled. —Thomas Wheatley, Axios, 6 Sep. 2024

The 57-window house required significant upgrades, including plumbing, electrical systems, a boiler and the replacement of 27 windows. —Brendel Hightower, Detroit Free Press, 6 Sep. 2024

For the ‘no firebricks’ scenario, it was assumed that countries would obtain the heat for industrial processes from electric furnaces, heaters, boilers, and heat pumps, with batteries used to store electricity for those technologies. —New Atlas, 5 Aug. 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