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Glite Dictionary
🔋 Containing a charge 🔋 A charged material
electret

electret

1 8.9
A material or device that keeps an electric charge used in microphones and sensors
  • noun
  • /ɪˈlɛktrɛt/
  • Specialized
: electreto
  • The calculated results for EPERM B were expressed as greater than since the electret totally discharged before the end of the exposure period.

Examples

  • This electret also discharged before the end of the sampling period.

    Academic text (1993)

  • Acoustics MB6052ASC-1 electret condenser microphones.

    Academic text (2017)

  • and Electret Passive Environmental Radon Monitors (EPERMs) manufactured by Rad Elec, Inc.

    Academic text (1993)

  • The electret in the microphone allows it to capture sound more accurately.

  • He learned that an electret is used to maintain a constant electric charge in various sensors.

  • Many modern microphones utilize an electret for its ability to hold a permanent electric charge.

Surface Forms

electret singular
electrets plural

Morphology

electret = electric (semi-transparent) = electr + et

Formed from 'electric' + the diminutive/derivational '-et'; the relation to electricity is clear but the precise technical meaning ('a material with a permanent electric charge') is specialized and not obvious to general B1 learners.

Etymology

Electret comes from electric and was formed to sound like magnet, giving the image of something that 'holds' an electric charge. That's why an electret is a material or device that keeps a lasting electric charge and is useful in microphones and sensors.