What is "polythiazyl"

n. (context inorganic chemistry English) A polymer of sulfur nitride that is an electrical conductor

Polythiazyl ( polymeric sulfur nitride), (SN), is an electrically conductive, gold- or bronze-colored polymer with metallic luster. It was the first conductive inorganic polymer discovered, and was also found to be a superconductor at very low temperatures (below 0.26 K).