dielectric

名词 dielectric:

1. a material such as glass or porcelain with negligible electrical or thermal conductivity
   同义词：insulator, nonconductor

di.e.lec.tric

n.（名词）
A nonconductor of electricity, especially a substance with electrical conductivity less than a millionth (0-') of a siemens.
电介质，绝缘体：一种非导电体，特别是指电导率低于百万分之一(0-')的物体

来源：
di(a)-
di(a)-
electric
electric

【引伸】
di.elec.tric
adj.（形容词）
di.elec.trically
adv.（副词）