| 1. |
(noun) a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan |
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Related Words: mechanism |
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| 2. |
(noun) a series of pipes for circulating steam or hot water to heat rooms or buildings |
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Related Words: heater, warmer |
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| 3. |
(noun) any object that radiates energy |
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Related Words: natural object, radio source |
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