A nonconducting substance that offers a barrier to the passage of heat or electricity.
The protection of a body or substance with a nonconducting medium to prevent the transfer of electricity, heat, or sound.
In electric circuits, there is often a need to separate adjacent conductors, and this is accomplished by employing a material with high electrical resistance. Such a material is specifically chosen for its ability to impede or restrict the flow of electric current between the adjacent conductors, effectively providing the desired separation.