insulator

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noun in·su·la·tor \ˈin(t)-sə-ˌlā-tər\

Definition of insulator

  1. :  one that insulates: such asa :  a material that is a poor conductor (as of electricity or heat) — compare semiconductorb :  a device made of an electrical insulating material and used for separating or supporting conductors

Examples of insulator in a sentence

  1. Metal is not a good insulator.

1801

First Known Use of insulator

1801


INSULATOR Defined for English Language Learners

insulator

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noun in·su·la·tor \ˈin(t)-sə-ˌlā-tər\

Definition of insulator for English Language Learners

  • : a material that allows little or no heat, electricity, or sound to go into or out of something


INSULATOR Defined for Kids

insulator

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noun in·su·la·tor \ˈin-sə-ˌlā-tər\

Definition of insulator for Students

  1. :  a material (as rubber or glass) that is a poor conductor of electricity, heat, or sound


Medical Dictionary

insulator

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noun in·su·la·tor \ˈin(t)-sə-ˌlāt-ər\

Medical Definition of insulator

  1. :  a material that is used to provide insulation; also :  a device made of such material



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