An Etymological Dictionary of Astronomy and Astrophysics

To cover or to separate from conducting bodies by means of nonconductors so as to prevent or reduce the passage, transfer, or leakage of heat, electricity, or sound. → insulation, → insulator.

Etymology (EN): From L. insulatus “made into an island,” from L. insula “island.”

Etymology (PE): From âyeq, → insulator, + kardan “to do,” → -or.