insulator

[ in-suh-ley-ter, ins-yuh- ]

Phonetic (Standard)IPA

noun

Electricity.
1. a material of such low conductivity that the flow of current through it is negligible.
2. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.
a person or thing that insulates.

insulator

/ ˈɪnsjʊˌleɪtə /

any material or device that insulates, esp a material with a very low electrical conductivity or thermal conductivity or something made of such a material

insulator

/ ĭn′sə-lā′tər /

A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.
Compare conductor

insulator

A material that does not easily transmit energy , such as electric current (see also current ) or heat. Materials such as wood, plastic, and ceramics are insulators. Fiberglass is an example of a heat insulator. ( Compare conductor .)

First recorded in 1795–1805; insulate + -or ²

The sheath surrounding the nerves acts as an electrical insulator, increasing neural speed by 100-fold.

It was more than a question of finding the perfect electrical insulator, though that would be handy too.

A wire was led through an insulator, so that the stream of electricity could be subjected to experiment in the Hut.

The insulators are of glass, protected by a wooden shield, of the pattern known as the Wade insulator.

For the insulation of the wires he recommended gutta-percha, which was then becoming known as an insulator.

In 1854 he introduced the pneumatic dispatch into London, and, in 1856, he patented his well-known double-cup insulator.

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