Polysulfide roj hmab yog ib hom roj hmab hluavtaws, uas belongs rau cov roj hmab tshwj xeeb. Lub ntsiab lus dav dav rau cov khoom siv hluavtaws tshwj xeeb uas muaj cov sulfur atoms.
Polysulfide roj hmab yog polycondensate ntawm dihalogen derivatives ntawm aliphatic hydrocarbons, ethers, thiab lwm yam los yog lawv cov mixs thiab polysulfides ntawm alkali hlau thiab alkaline ntiaj teb hlau.