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

Josef said preliminary reports indicate the museum had an issue with its boiler. —Justin Muszynski, Hartford Courant, 10 Dec. 2024

The power plants, built almost entirely in the 1960s and ’70s, burn high-sulfur fuel, which is more damaging to condensers and boilers, says Jorge Piñon, a nonresident fellow at the Energy Institute at the University of Texas at Austin. —Whitney Eulich, The Christian Science Monitor, 22 Nov. 2024

According to Goldberg, she was told the bakery couldn’t honor her 50-unit order because of trouble with their boiler. —Brian Niemietz, New York Daily News, 16 Nov. 2024

Credits that helped Americans improve the energy efficiency of their homes by installing an electric heat pump or boiler, adding insulation, replacing windows and making other upgrades were most popular in the Northeast and Midwest. —Nadja Popovich, New York Times, 8 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