Alternate Definitions for dielectric

Definition: A material that reduces the electric field strength between two conductors by aligning its molecular dipoles in response to an external electric field.

Example: Ceramic capacitors utilize barium titanate, a dielectric material, to store electrical charge.

Definition: A subclass of electric insulators that also have a significant dielectric constant, i.e. charge screening capability. Also used to simply mean: electrical insulator.

Example: Glass is a dielectric material