Definition, Meaning & Synonyms

dielectric

noun

/ˌdaɪ.əˈlɛk.trɪk/

Definition

A dielectric is a substance that is a poor conductor of electricity but an efficient supporter of electrostatic fields.

Examples

Glass is commonly used as a dielectric in capacitors.
In a capacitor, the dielectric material increases the capacitance by allowing the storage of more electric charge.
Some dielectric materials are used in insulators, preventing unwanted current flow.

Meaning

The term ‘dielectric’ refers to materials that can be polarized by an electric field, meaning they help store electric charge without conducting current.