dielectric polarization, \(P\)

https://doi.org/10.1351/goldbook.D01698
The difference between the electric displacement vector and the product of the electric field strength with the permittivity of vacuum, \(P = D - \varepsilon_{0}\ E\).
Source:
Green Book,2nd ed., p. 14 (https://www.cintegrado.com.br/site/documentos/green_book_2ed.pdf)