These headphones serve as an insulator.
- Soundproofing material is an example of an insulator.
- A substance that doesn't conduct electricity well is an example of an insulator.
The definition of an insulator is something that is used to keep heat or sound contained, or something that does not conduct electricity.
anything that insulates; specif.,
- a nonconductor of electricity, heat, or sound
- a device, as of glass or porcelain, for insulating and supporting electric wires
- A material that insulates, especially a nonconductor of sound, heat, or electricity.
- A device that insulates.
- A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
- A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)
- To isolate electrical wires from the pylons supporting them, one often uses glass insulators.
From insulate 'to isolate' (itself from Latin insula 'island') + suffix -or