from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A sulphide having more than one atom of sulphur in the molecule; -- contrasted with monosulphide.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry Alternative spelling of polysulfide.


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  • Following a brief wash in buffer A, the water-soluble cobalt taken up by the cells was precipitated by 0. 12\% ammonium polysulphide

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