Longman Dictionary of Contemporary English homepage

radiator

 noun
     
Related topics: House, Motor Vehicles
ra‧di‧a‧tor [countable]
1DHH a thin metal container that is fastened to a wall and through which hot water passes to provide heat for a room
2TTCTTA the part of a car or aircraft which stops the engine from getting too hot
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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