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

insulator

noun

/ˈɪnsjuleɪtə(r)/

/ˈɪnsəleɪtər/

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a material or device used to prevent heat, electricity, or sound from escaping from somethingTopics Engineeringc2

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See insulator in the Oxford Advanced American DictionarySee insulator in the Oxford Learner's Dictionary of Academic English

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