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insulator

  • noun
  • /ˈɪn.s(j)ə.leɪ.tə(ɹ)/

A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).

Other meanings

  1. A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)

    “To isolate electrical wires from the pylons supporting them, one often uses glass insulators.”

  2. A person who installs insulation.

Synonyms

  • isolation
  • dielectric

Kinds of insulator

  • mineral wool
  • glass wool
  • ferroelectric material

Antonyms

  • conductor

Related words

  • microinsulator
  • superinsulator
  • strain insulator
  • topological insulator
  • mica insulator

Where this comes from

This definition is adapted from “insulator” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.