insulator

English dictionary entry

Meanings

noun
  1. A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
  2. A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)
  3. A person who installs insulation.

Pronunciation

/ˈɪn.s(j)ə.leɪ.tə(ɹ)/ LL-Q1860 (eng)-Vealhurl-insulator.wav

Word forms

insulator insulators

Etymology

From insulate + -or.

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