su·per·con·duct 
(spər-kən-dŭkt′)
(spər-kən-dŭkt′)intr.v. su·per·con·duct·ed, su·per·con·duct·ing, su·per·con·ducts
To allow the flow of electric current without resistance. Certain materials superconduct at low temperatures.
super·con·duc′tor (-dŭk′tər) n.