electret Hear it!

electret definition

elec·tret (ē lek′trit, -tret′; i-)

noun

any of certain solid, dielectric materials that have a permanent electric charge after being melted and resolidified in a strong electric field: used in telephones, microphones, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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