English Lexicon

Electrical Insulator

/ɪˈlɛktrɪkəl ˈɪnsəleɪtə/
nounCEFR B2 (Upper)Top #15000 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A material that resists the flow of electric current.

    "Rubber is commonly used as an electrical insulator in power cables."
  2. 2

    An object or device that serves to prevent the passage of electricity.

    "The electrical insulator on the power line prevented short circuits."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'electrical insulator' combines 'electrical', derived from the Greek 'ēlektron' meaning 'amber', which was historically associated with static electricity, and 'insulator', from the Latin 'insulatus', meaning 'made into an island', referring to the material's ability to prevent the flow of electricity.

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