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radiator - 6 dictionary results
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ra⋅di⋅a⋅tor

  [rey-dee-ey-ter]
Use radiator in a Sentence
–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.
Origin:
1830–40; radiate + -or 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ra·di·a·tor   (rā'dē-ā'tər)   
n.  
  1. A heating device consisting of a series of connected pipes, typically inside an upright metal structure, through which steam or hot water is circulated so as to radiate heat into the surrounding space.
  2. A cooling device, as in automotive engines, through which water or other fluids circulate as a coolant.
  3. Physics A body that emits radiation.
  4. A transmitting antenna.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Radiator

Ra"di*a`tor\, n. 1. Any of various devices for cooling an internal substance by radiation, as a system og rings on a gun barrel for cooling it, or a nest of tubes with large radiating surface for cooling circulating water, as in an automobile.

2. (Wireless Teleg.) An oscillator.

Radiator

Ra"di*a`tor\, n. That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus from which the heat is radiated or diffused; as, a steam radiator.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : radiator
Spanish: radiador,
German: der Heizkörper,
Japanese: 暖房器
More Translations »

radiator 
1836, "any thing that radiates," from radiate (see radiant) + agent suffix -or. Meaning "heater" is from 1851; sense of "cooling device in internal combustion engine" is 1900.
Online Etymology Dictionary, © 2001 Douglas Harper
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radiator   (rā'dē-ā'tər)  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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