dielectric

from WordNet (r) 3.0 (2006)
dielectric
    n 1: a material such as glass or porcelain with negligible
         electrical or thermal conductivity [syn: {insulator},
         {dielectric}, {nonconductor}] [ant: {conductor}]
from The Collaborative International Dictionary of English v.0.48
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]
from Moby Thesaurus II by Grady Ward, 1.0
18 Moby Thesaurus words for "dielectric":
      conductance, conduction, conductivity, conductor,
      electric conduction, gas conduction, insulator, ionic conduction,
      liquid conduction, metallic conduction, mho, nonconducting,
      nonconductive, nonconductor, photoconduction, semiconductor,
      superconductivity, superconductor
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