piezoelectricity
/paɪˈiːzəʊˌɪlekˈtrɪsətɪ/noun
mass noun
- electric polarization in a substance (especially certain crystals) resulting from the application of mechanical stress压电(现象)。
Piezoelectric substances are able to convert mechanical signals (such as sound waves) into electrical signals, and vice versa. They are therefore widely used in microphones, gramophone pickups, and earphones, and also to generate a spark for lighting gas.
派生词
piezoelectric
adjectivepiezoelectrically
adverb词源
late 19th cent.: from Greek piezein 'press, squeeze' + ELECTRICITY.