polysulfide

[ pol-ee-suhl-fahyd ]
/ ˌpɒl iˈsʌl faɪd /

noun Chemistry.

a sulfide whose molecules contain two or more atoms of sulfur.

Origin of polysulfide

First recorded in 1840–50; poly- + sulfide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019