Material resisting electrical and thermal flow.

Device that supports and isolates wires.

Glass or porcelain electrical insulation device.

Supports and separates electrical conductors.

In semiconductor manufacturing, silicon on insulator technology is fabrication of silicon semiconductor devices in a layered silicon–insulator–silicon substrate, to reduce parasitic capacitance within the device, thereby improving performance.

a material which conducts electrons only along its edges and surfaces, but does not conduct in its interior

Mott insulators are a class of materials that are expected to conduct electricity according to conventional band theories, but turn out to be insulators (particularly at low temperatures).