Dielectric

n.

1.

(Elec.) Any substance or medium that transmits the electric force by a process different from conduction, as in the phenomena of induction; a nonconductor, separating a body electrified by induction, from the electrifying body.

Noun

1.

dielectric - a material such as glass or porcelain with negligible electrical or thermal conductivity Synonyms: insulator, nonconductor

conductance, conduction, conductivity, conductor, electric conduction, gas conduction, insulator, ionic conduction, liquid conduction, metallic conduction, mho, nonconducting, nonconductive, nonconductor, photoconduction, semiconductor, superconductivity, superconductor