Definition of electret in English:

electret

noun

Physics
  • A permanently polarized piece of dielectric material, analogous to a permanent magnet.

    • ‘The passive device group includes alpha track detectors, charcoal canisters, charcoal liquid scintillation detectors, and electret ion chambers.’
    • ‘There are mini headphone and microphone jacks - the unit includes a pair of headphones with a tiny electret mic attached on a boom - and a proprietary USB jack with cable supplied.’
    • ‘Typically, all of the passive devices, except electret ion detectors, are available in hardware stores or by mail; electret ion detectors are usually only available through laboratories.’
    • ‘‘Well, we actually used miniature electret condenser mics,’ Vale explains.’
    • ‘The electret microphone (range, 20 to 25,000 Hz within three decibels) was fixed in a polyester cover.’
    • ‘The analog input can accept microphone sources and can supply + 5V for electret condenser computer mics.’
    • ‘A small electret condenser monaural microphone is found on the top panel next to its speaker, so you can annotate each image with your own voice.’
    lodestone, magnetite
    View synonyms

Origin

Late 19th century: blend of electricity and magnet.

Pronunciation

electret

/əˈlektrət//əˈlɛktrət/