Yes, a material that is a poor conductor of electricity is considered an insulator.

Here's why:

* Conductors allow electricity to flow easily through them because they have free electrons that can move throughout the material.

* Insulators resist the flow of electricity because their electrons are tightly bound to their atoms and cannot move freely.

Examples of insulators:

* Rubber

* Glass

* Plastic

* Wood

* Air

Important Note: There is no perfect insulator, and even the best insulators can conduct some electricity under extreme conditions like very high voltages.