Wiktionary
alt. (context chemistry English) any compound of general formula RS''n''R having a chain of more than two sulfur atoms; any derivative of a polysulfane n. (context chemistry English) any compound of general formula RS''n''R having a chain of more than two sulfur atoms; any derivative of a polysulfane
Wikipedia
Polysulfides are a class of chemical compounds containing chains of sulfur atoms. There are two main classes of polysulfides: anions and organic polysulfides. Anions have the general formula . These anions are the conjugate bases of the hydrogen polysulfides HS. Organic polysulfides generally have the formulae RSR, where R = alkyl or aryl.
Usage examples of "polysulfide".
Almost every day they came back to the trailer park with samples of new materials: sulphuric acid, sorel cements for the vault mortar, ammonium nitrate explosives, a calcium cyanamide rover fuel, polysulfide rubber, silicon-based hyperacids, emulsifying agents, a selection of test tubes holding trace elements extracted from the salts.
Almost every day they came back to the trailer park with samples of new materials: sulphuric acid, sorel cements for the vault mortar, ammonium nitrate explosives, a calcium cyanamide rover fuel, polysulfide rubber, silicon-based hyperacids, emulsifying agents, a selection of test tubes holding trace elements extracted from the salts, and, most recently, clear glass.