An insulator is a material that doesn't allow electricity, heat, or sound to easily pass through it. It helps to keep things separate and protected. Full definition
In a study whose results were published in Nature last July, physicist Ali Yazdani used a powerful microscope to track electrons as they encountered stairlike barriers on the surface of antimony, a material that shares several characteristics with topological insulators such as bismuth telluride. (discovermagazine.com)
These jobs include activities where workers are around products used as insulators in buildings and roofing products, wallboards, paint and concrete. (asbestoslaw.com)
These electrons affect the functioning of insulators in electronic systems and are responsible for radiation damage in human and other biological tissue. (sciencedaily.com)