+An **insulator** is a material that strongly resists the flow of [electricity](/wiki/electricity) or [heat](/wiki/heat). Possessing high electrical resistance, it is used to prevent the unwanted transfer of [energy](/wiki/energy) and ensure safety.
+## See also
+- [Conductor](/wiki/conductor)
+- [Semiconductor](/wiki/semiconductor)
+- [Dielectric](/wiki/dielectric)
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