/ (ˌpɒlɪˈsʌlfaɪd) /
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any sulphide of a metal containing divalent anions in which there are chains of sulphur atoms, as in the polysulphides of sodium, Na 2 S 2, Na 2 S 3, Na 2 S 4, etc
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Words nearby polysulphide
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use polysulphide in a sentence
Hence magnesium and sulphur combine under the action of pressure, forming magnesium sulphide and possibly a polysulphide.
After five compressions a mass is obtained which, in contact with moist air, gives off an odor of hydrogen polysulphide.