Definition of defibrillator noun from the Oxford Advanced Learner's Dictionary

 

defibrillator

 noun
noun
BrE BrE//diːˈfɪbrɪleɪtə(r)//
 
; NAmE NAmE//diːˈfɪbrɪleɪtər//
 
(medical) Medical equipment
 
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a piece of equipment used to control the movements of the heart muscles by giving the heart a controlled electric shock See related entries: Medical equipment
See the Oxford Advanced American Dictionary entry: defibrillator