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A sulfide compound containing at least two sulfur atoms per molecule.


(ˌpɒl iˈsʌl faɪd)

a sulfide whose molecules contain two or more atoms of sulfur.
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References in periodicals archive ?
Metsa Fibre s Joutseno mill in Finland started up the world s largest single polysulfide cooking line.
Among the selected elastomers are natural rubber, fluoroelastomer, silicone, fluorosilicone, urethane, nitrile, butyl, EPDM, polybutadiene and polysulfide.
Among the elastomers listed are natural robber, synthetics in common usage such as EPDM, silicone, urethane and polysulfide, and some of today's more exotic synthetic rubbers, such as fluoroelastomer and fluorosilicone.
Hydrin epichlorohydrin elastomers are said to offer mechanical properties similar to those of natural rubber, along with many of the desirable properties of nitrile, polychloroprene, polysulfide and polyacrylic elastomers.
NXT LowV silane and NXT Ultra-LowV silane coupling agents are said to help decrease ethanol emissions by up to 90% compared to polysulfide silanes.
The TESPT has a polysulfide chain with S ranking of about 3.