Definition of polysulfide in English:


Syllabification: pol·y·sul·fide
Pronunciation: /ˌpäliˈsəlˌfīd
(chiefly British also polysulphide)


  • 1A compound containing two or more sulfur atoms bonded together as an anion or group.
    More example sentences
    • Thiokol Chemical Corporation produced a synthetic rubber from ethylene dichloride and sodium polysulfide.
    • Approximately 3 lb of calcium carbonate are needed to neutralize the effect of 1 lb of sulfur applied as elemental sulfur or ammonium polysulfide.
  • 1.1A synthetic rubber or other polymer in which the units are linked through sulfur compounds.
    More example sentences
    • The polysulfide degrades, cracks and causes the window to fail and ‘fog up’.
    • These coatings exhibit the toughness and adhesion of epoxy, with the elasticity and chemical resistance of a polysulfide.
    • There are three common types: polysulfides, polyurethanes, and silicones.

More definitions of polysulfide

Definition of polysulfide in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day kerf
Pronunciation: kərf
a slit made by cutting with a saw