Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress. The word piezoelectricity means electricity resulting from pressure and latent heat.
The piezoelectric effect is a reversible process in that materials exhibiting the direct piezoelectric effect (the internal generation of electrical charge resulting from an applied mechanical force) also exhibit the reverse piezoelectric effect (the internal generation of a mechanical strain resulting from an applied electrical field).
Piezoelectricity is exploited in a number of useful applications, such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalances . . .
https://en.wikipedia.org/wiki/Piezoelectricity
The piezoelectric effect is a reversible process in that materials exhibiting the direct piezoelectric effect (the internal generation of electrical charge resulting from an applied mechanical force) also exhibit the reverse piezoelectric effect (the internal generation of a mechanical strain resulting from an applied electrical field).
Piezoelectricity is exploited in a number of useful applications, such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalances . . .
https://en.wikipedia.org/wiki/Piezoelectricity