WordReference Random House Unabridged Dictionary of American English © 2026
pol•y•sul•fide
(pol′ē sul′fīd),USA pronunciation n. [Chem.]
- Chemistrya sulfide whose molecules contain two or more atoms of sulfur.
- poly- + sulfide 1840–50
'polysulfide' also found in these entries (note: many are not synonyms or translations):