A material that hinders the passage of electric charge is called an insulator.

Here's why:

* Conductors allow electric charge to flow easily through them. Think of metals like copper and silver.

* Insulators resist the flow of electric charge. They hold onto their electrons tightly, making it difficult for charge to move freely. Think of materials like rubber, glass, and plastic.

Let me know if you'd like to know more about conductors or insulators!