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electret
(redirected from electrets)

    Also found in: Dictionary/thesaurus, Wikipedia 0.06 sec.
electret, solid electrically insulating, or dielectric, material that has acquired a long-lasting electrostatic polarization. Electrets are produced by heating certain dielectric materials to a high temperature and then letting them cool while immersed in a strong electric field. An electret is an analog of a permanent magnet.
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