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:
The other lives in a tank next to your water heater and bills you by the gallon.
From MarketWatch ● Oct. 28, 2026
"The fire started accidentally resulting from a mechanical or connection-related failure of a portable gas heater and gas bottle resulting in an uncontrolled gas release."
From BBC ● Oct. 7, 2026
A wood-burning cast-iron stove serves as both fireplace and heater in the center of the living space.
From Los Angeles Times ● Oct. 6, 2026
“In recent years, the property upgrades include a new pool heater, new hardwood floors throughout the home, a new roof on the carport, and landscaping around the property,” says Raigeul.
From MarketWatch ● Aug. 21, 2026
The resulting mix just spewed feebly in the hot-water heater.
From "October Sky" by Homer Hickam
The cottage has gas-powered convection heaters, but in an adjacent barn a stack of firewood will help to keep Olena warm in the event of power cuts.
From BBC ● Oct. 9, 2026
Nibe heaters are used in the production of higher-performance semiconductors.
From The Wall Street Journal ● Aug. 21, 2026
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
So they have heaters to keep the electronics warm.
From "The Martian" by Andy Weir
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
