• synonyms


or di·sul·phide

[dahy-suhl-fahyd, -fid]
noun Chemistry.
  1. (in inorganic chemistry) a sulfide containing two atoms of sulfur, as carbon disulfide, CS2.
  2. (in organic chemistry) a sulfide containing the bivalent group −SS−, as diethyl disulfide, C4H10S2.
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Origin of disulfide

First recorded in 1860–65; di-1 + sulfide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for disulphide

Historical Examples

  • The disulphide, IrS2, is formed when powdered iridium is heated with sulphur and an alkaline carbonate.

    Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 7


  • I pull out the leg of a live Spider and put it to soak for an hour in disulphide of carbon, which dissolves fat.

    Insect Adventures

    J. Henri Fabre

  • I put the leg to soak for a quarter of an hour in disulphide of carbon, the best solvent of fatty matters.

  • By heating the disulphide in a current of hydrogen, germanious sulphide, GeS, is formed.

British Dictionary definitions for disulphide


  1. any chemical compound containing two sulphur atoms per moleculeAlso called (not in technical usage): bisulphide
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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

disulphide in Medicine


  1. A chemical compound containing two sulfur atoms combined with other elements or radicals.bisulfide
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.