insulator(redirected from Electrical insulator)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to Electrical insulator: porcelain insulator
1. A material that insulates, especially a nonconductor of sound, heat, or electricity.
2. A device that insulates.
(General Physics) any material or device that insulates, esp a material with a very low electrical conductivity or thermal conductivity or something made of such a material
in•su•la•tor(ˈɪn səˌleɪ tər, ˈɪns yə-)
a. a material of such low conductivity that the flow of electric current through it is negligible.
b. a device made of such material, as glass or porcelain, for supporting a charged conductor and electrically isolating it.
2. one that insulates.
Switch to new thesaurus
|Noun||1.||insulator - a material such as glass or porcelain with negligible electrical or thermal conductivity|
bushing - an insulating liner in an opening through which conductors pass
material, stuff - the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread"
glass wool - glass fibers spun and massed into bundles resembling wool
conductor - a substance that readily conducts e.g. electricity and heat