[rey-dee-ey-ter] 
| 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. |
| ra·di·a·tor (rā'dē-ā'tər) n.
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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. |
diˌeɪ