1) Condensed matter physics
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https://www.crosswordclues.com/clue/electret
Electret (formed of elektr- from `electricity` and -et from `magnet`) is a dielectric material that has a quasi-permanent electric charge or dipole polarisation. An electret generates internal and external electric fields, and is the electrostatic equivalent of a permanent magnet. Oliver Heaviside coined this term in 1885. Materials with elect...
Found on
http://en.wikipedia.org/wiki/Electret
material that retains its electric polarization after being subjected to a strong electric field. The positive charge within the material becomes ...
Found on
http://www.britannica.com/eb/a-z/e/18
The electrostatic equivalent of the permanent magnet. Dielectric materials that have been permanently electrically charged or polarised.
Found on
http://www.mpoweruk.com/glossary.htm
a non-conductive polymeric material which can maintain a long-lived electrostatic charge. Polypropylene electret filtration fabrics conveniently combine the mechanical removal of particles with an electrostatic field, which materially increases the filtration efficiency.
Found on
http://www.textilesintelligence.com/glo/index.cfm?SECTION=E
a dielectric that possesses a permanent or semipermanent electric polarity, analogous to a permanent magnet.
Found on
https://www.infoplease.com/dictionary/electret
No exact match found.
