noun
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any device for supplying heat, such as a hot-air blower, radiator, convector, etc
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slang a pistol
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electronics a conductor carrying a current that indirectly heats the cathode in some types of valve
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of heater
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Tugboat’s seemingly unimpressive heater might not light up the radar gun, but batters insist it feels much faster than it actually is.
From The Wall Street Journal ● Aug. 20, 2026
Adjust your electronics and water heater: Turn off computers, TVs and lights when not in use to eliminate ambient heat.
From MarketWatch ● Jun. 29, 2026
In the seventh, he pumped a heater to the top rail against Miguel Vargas, who stayed on top of the pitch to send a line drive to left field — and right to Call.
From Los Angeles Times ● Jun. 13, 2026
Aldana Ramirez tries to warm up beside a brasero, a type of local heater, on a freezing night at Los Azules copper project in San Juan province, the epicenter of Milei's mining "revolution."
From Barron's ● May 23, 2026
The combination of the cold and the warmth from Trey’s heater is just as A-1 tonight as it was then.
From "On the Come Up" by Angie Thomas
In the last 25 years, a new roof was installed, as well as air conditioning units and water heaters.
From MarketWatch ● Aug. 21, 2026
Engineers must carefully reduce energy use by shutting off heaters and instruments while also preventing the spacecraft from becoming so cold that its fuel lines freeze.
From Science Daily ● May 4, 2026
Around us there are several vertical cylinders like so many different-sized water heaters.
From BBC ● Apr. 13, 2026
The $64 million allocated to the Orange Cove pilot could instead be invested in electric heat pumps, heat pump water heaters, and induction stoves, permanently eliminating gas use and indoor air pollution for the community.
From Los Angeles Times ● Feb. 16, 2026
In our outfit, Army trucks had no heaters and it used to get pretty cold in those cabs.
From "In Cold Blood" by Truman Capote
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
