<p><strong>Noun</strong></p><ul><li>A substance that does not readily conduct heat, sound, or electricity.</li><li>A material of such low conductivity that the flow of current through it is negligible.</li><li>Insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.</li><li>A person or thing that insulates.</li></ul><p><strong>End of Response</strong></p>