whats the difference between dielectric and insulator

Question

hoblos · Answer

The difference between dielectric and insulator lies in its field of application.
dielectrics are used to store the electric charges, while insulators are used to block the flow of electric charges

anonymous · Answer

Dielectrics are often heard in accosiation with polarization of some material. If we can describe the displacment vector of a material (and hence the electric field it creates) by some constant times the polarization of the material then we call that material dielectric. This means that the material produces its own electric field though the material is electrically neutral. This comes from tiny dipoles being formed in the material (which are characterized by this dielectric constant).

anonymous · Answer

Also insulators are dielectrics just in different context. If we apply an electric field to an insulator (or rub our hair against a balloon) then we cause the nucleus' and electron clouds in the insulators to seperate a tiny bit. This seperation causes it's own electric field though the number of electrons and protons is still equal.