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muffler

noun [C] (CAR)
 
 
/ˈmʌf.lər/ US  /-lɚ/ US and Australian English

Definition

a part of a vehicle that reduces noise from the engineThe engine and engine partsEngines and motorsParts of guns → See also silencer
(Definition of muffler noun (CAR) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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