insulator

About 0.93 uses per million words.

Meaning

1. noun A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
2. noun 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.

3. noun A person who installs insulation.

Similar words

dielectric nonconductor insulation insulating superconductor semiconductor boot vinyl isolation nonelectric

Often followed by

and is transition to in for of or with

Word family

insulators