Answer: insulators

AnswerCrossword Clue
insulatorsA substance or device that does not readily conduct electricity
insulatorsA thing or substance used for insulation, in particular
insulatorsA block of material, typically glass or ceramic, enclosing a wire carrying an electric current where it crosses a support
insulatorsINSULATOR, a nonconductor of electricity; a device for insulating a conductor
insulatorsA substance that does not readily allow the passage of heat or sound