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.
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
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 charity Community Action Northumberland suggested switching to an oil-filled electric radiator or electric heater to help with costs.
From BBC • Mar. 26, 2026
An all-electric, energy-efficient alternative to gas-burning furnaces, heat pumps are widely seen as the climate-friendly home heater of choice.
From Los Angeles Times • Mar. 1, 2026
She was in her apartment on Spring Garden Street, the first that was truly hers in America, hers alone, a studio with a leaky faucet and a noisy heater.
From "Americanah" by Chimamanda Ngozi Adichie
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.
