polysulphidePronunciation: /ˌpɒlɪˈsʌlfʌɪd/ (US polysulfide)Definition of polysulphide noun Chemistry a compound containing two or more sulphur atoms bonded together as an anion or group. a synthetic rubber or other polymer in which the units are linked through such groups. polysulphide in other Oxford dictionaries Definition of polysulphide in the US English dictionary
