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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

... useful in a telephone line. The simplest form of a condenser is illustrated in Fig. 28, in which two conducting surfaces are separated by an insulating material. The larger the surfaces, the closer they are together; and the higher the specific inductive capacity of the insulator, the greater the capacity of the device. An insulator used in this relation to two conducting surfaces is ...

— Cyclopedia of Telephony & Telegraphy Vol. 1 - A General Reference Work on Telephony, etc. etc. • Kempster Miller

... they found it necessary to be careful, they had little difficulty in reaching the chimney. Before erecting the mast they fastened one end of the aerial over the hook in it. The aerial consisted of a single, number fourteen, hard drawn copper wire, insulated at each end by an earthenware insulator having two hooks embedded in it. One of these hooks went over the hook in the mast, while the other had the end of the wire attached to it. A similar insulator was provided at the other end of the wire, thus preventing its becoming grounded to ...

— The Radio Boys' First Wireless - Or Winning the Ferberton Prize • Allen Chapman

... follow us," the girl explained, "Certain juices of the plants provide an insulator against the ray. In fact, it was an extract of these that was used in protecting the underground laboratory we just left. We are safe now and I am ...

— The Copper-Clad World • Harl Vincent