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electret

Line breaks: elec|tret
Pronunciation: /ɪˈlɛktrɪt
 
/

Definition of electret in English:

noun

Physics
A permanently polarized piece of dielectric material, analogous to a permanent magnet.
Example sentences
  • 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.
  • The electret microphone (range, 20 to 25,000 Hz within three decibels) was fixed in a polyester cover.
  • 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.

Origin

late 19th century: blend of electricity and magnet.

Definition of electret in:

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