Definition of "insulators" [insulators]

• Plural form of insulator. (noun)

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• "The arc caused by its body melted porcelain insulators and steel and iron supports."
• "This was a surprising discovery, to the researchers as well as to others - we are all used to plastics, in contrast to metals, being insulators, which is why we cover electrical cords in plastic."
• "In other materials, called insulators, there is a wide gap between the valence band and the conduction band, making it almost impossible for an electron to get excited enough to jump from one to the other, so they block the flow of electricity."