ELECTRETS
11
Scrabble
13
WWF
E(1) L(1) E(1) C(3) T(1) R(1) E(1) T(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A solid dielectric having a quasi-permanent charge; usually a metallized film; used in electroacoustic and electromechanical transducers and in air filters.
Source: Wiktionary
