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defibrillator

noun [C]
 
 
/ˌdiːˈfɪb.rɪ.leɪ.tər/ US  /-t̬ɚ/ specialized

Definition

a machine used especially in hospitals, which uses an electric current to stop any irregular and dangerous activity of the heart's muscles: Defibrillators are used to restore normal rhythm to the heart.Medical and surgical equipment
(Definition of defibrillator noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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