insulator Meaning, Definition & Usage

  1. noun a material such as glass or porcelain with negligible electrical or thermal conductivity
    nonconductor; dielectric.

WordNet


In"su*la`tor noun
Definitions
  1. One who, or that which, insulates.
  2. (Elec. & Thermotics) The substance or body that insulates; a nonconductor.

Webster 1913