1. A reference to material; such as, glass or porcelain with negligible electrical or thermal conductivity.
2. Pertaining to a substance or medium that can sustain a static electric field within it.
3. Relating to something that is a poor conductor of electricity, but an efficient supporter of electrostatic fields: Dielectric conditions can support an electrostatic field while dissipating minimal energy in the form of heat; frequently used in capacitors.
4. A type of insulator which becomes polarized when it comes in contact with an electrical field: The dielectric material can easily support an electrostatic field even though it is not a conductor of electricity.

Such dielectric materials are used in many places; such as, in capacitors and radios, as well as transmission lines for radio frequency and it can be used to store energy too, if it is configured properly.

Most of these dielectric materials are solid in nature, but some fluids and gasses also exhibit dielectric properties; such as gas is dry air, while examples of solid dielectric materials include mica, ceramic, plastics and glass and even distilled water is considered to be a dielectric liquid.

1. The energy losses in a dielectric medium when the medium is exposed to a time-varying electric field.
2. The undesirable tendency of certain dielectrics to retain a portion of an electric charge after removal of the electric field.

The property of a material that determines how much electrostatic energy can be stored per unit volume of the material when unit voltage is applied.

An indication of the loss in dielectric property of a material: The dielectric loss becomes very important at high drive levels for transducers, as it indicates the amount of heat generation one can expect in a piezoelectric (a crystalline substance) the electrical property of which is changed by a pressure device.

The ability of a dielectric material to withstand high voltages without breaking down; expressed as the highest voltage required per millimeter of material thickness before a breakdown occurs: The dielectric strength is the maximum electrical potential gradient that a material can withstand without rupture; usually specified, in volts per millimeter of thickness.

The electric field intensity multiplied by the permittivity (measure of the ability of a nonconducting material to retain electric energy when placed in an electric field) or the property of a dielectric medium which determines the forces that electric charges placed in the medium exert on each other.

The dependence of the polarization of ferroelectric materials not only on the applied electric field but also on their previous history.

It is similar to magnetic hysteresis in ferromagnetic materials.

Hysteresis is the lag between making a change; such as, increasing or decreasing electric power, and the response or effect of that change.

It usually refers to turn-on and turn-off points in electrical, electronic, and mechanical systems.

A dimensionless parameter measuring the ease of polarization of a dielectric, equal (in meter-kilogram-second units) to the ratio of the polarization to the product of the electric field strength and the vacuum permittivity or the measure of the ability of a material to resist the formation of an electric field within it.