radiator

[rey-dee-ey-ter]

noun

1. a person or thing that radiates.

2. any of various heating devices, as a series or coil of pipes through which steam or hot water passes.

3. a device constructed from thin-walled tubes and metal fins, used for cooling circulating water, as in an automobile engine.

4. Radio.,  a transmitting antenna.

radiator

/ ˈreɪdɪˌeɪtə /

noun

1. a device for heating a room, building, etc, consisting of a series of pipes through which hot water or steam passes

2. a device for cooling an internal-combustion engine, consisting of thin-walled tubes through which water passes. Heat is transferred from the water through the walls of the tubes to the airstream, which is created either by the motion of the vehicle or by a fan

3. an electric fire

4. electronics the part of an aerial or transmission line that radiates electromagnetic waves

5. an electric space heater

radiator

1. A body that emits radiation. Radiators are commonly designed to transfer heat energy from one place to another, as in an automobile, in which the radiator cools the engine by transferring heat energy from the engine to the air, or in buildings, where radiators transfer heat energy from a furnace to the air and objects in the surrounding room.

Word History and Origins

Origin of radiator¹

First recorded in 1830–40; radiate + -or ²

Example Sentences

You may already have hung thicker curtains and blocked the drafts over the last couple of winters, but do not forget to switch off radiators in rooms you are not using and wrap up.

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"I don't use it much and I only have one radiator on," she said.

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Finally, a heat exchanger transfers this heat to water that gets pumped around your radiators, for instance.

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"I live in a very old Guernsey cottage, which is stone and it's freezing in there in the winter, and I only run one radiator."

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Keenan was violent towards her, in attacks which included dragging her off a bed and causing her head to strike a radiator.

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Related Words

• boiler 
• fastball 
• furnace 
• oven 
• stove