INSULATOR • FREE TRANSLATOR.ORG • Definition of Insulator

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/ˈɪnsəlˌeɪtər/ Listen

noun

Insulator n.

One who, or that which, insulates.

(Elec. & Thermotics) A substance or object that insulates; a nonconductor; as, polyurethane foam is a popular thermal insulator.

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Etymology of 'Insulator'

Collaborative International Dictionary of English 0.48

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"Insulator" Quotes from Famous Books

... together. For much of the way we see the splendidly equipped Indo-European Telegraph Company's line, the finest telegraph line in the world. Equipped with substantial iron poles throughout, and with every insulator covered with an iron cap in countries where the half-civilized natives are wont to do them damage, this line runs through the various countries of Europe and Asia to Teheran, Persia, where it joins hands with the British Government line ...

— Around the World on a Bicycle Volume II. - From Teheran To Yokohama • Thomas Stevens

... surface of the mica. There appears to be a luminous layer of minute sparks under the foils, and there is a strong smell of ozone. In a dielectric which heats, there may be three kinds of conduction, viz., metallic, when an ordinary conductor is embedded in an insulator; disruptive, as probably occurs in the case of mica; and electrolytic, which might occur in glass. In a transparent dielectric the conduction must be either electrolytic or disruptive, otherwise light vibrations would be damped. The dielectric ...

— Scientific American Supplement, No. 795, March 28, 1891 • Various