Where does “insulator” come from?
Insulator derives from Latin insulātor, from Latin insulātus meaning "made into an island," from Latin insula meaning "island," ultimately from Proto-Indo-European seh₂l- meaning "salt" or "to salt."
insulator (English): A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator)
Definitions
- A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator)