What is the act of separating a body from others by nonconductors, so as to prevent the transfer of electricity or of heat; also, the state of a body so separated called?

insulation — (Elec. & Thermotics) The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity or of heat; also, the state of a body so separated. (Webster's 1913.)

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