A permanently polarized piece of dielectric material, analogous to a permanent magnet.
More 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.
Definition of electret in:
- The British & World English dictionary