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Meaning of insulator

in•su•la•tor

Pronunciation: (in'su-lā"tur, ins'yu-), [key]
— n.
    1. a material of such low conductivity that the flow of current through it is negligible.
    2. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.
  1. a person or thing that insulates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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