dielectric
NounWordNet 3.0
Noun (1)
- a material such as glass or porcelain with negligible electrical or thermal conductivitySynonyms: insulatornonconductor
Webster's Dictionary (GCIDE)
Dielectric \Di`e*lec"tric\, n. [Pref. dia- + electric.] (Elec.) Any substance or medium that transmits the electric force by a process different from conduction, as in the phenomena of induction; a nonconductor, separating a body electrified by induction, from the electrifying body. [1913 Webster]