a solid dielectric having a quasi-permanent charge; usually a metallized film; used in electroacoustic and electromechanical transducers and in air filters
electret
الواصلة
e·lec·tret
النطق
علم أصول الكلمات
[ i-'lek-tr&t, -"tret ] (noun.) 1885. Blend of electricity and magnet.