A chemical compound containing two atoms of sulfur, an older or alternate spelling of disulfide.
British variant of dis- + sulph- + -id (suffix for binary compounds), where -id comes from Latin indicating a compound of two elements, used before the standardization to -ide.
In historical chemical texts, you'll see -id, -ide, -et, and -uret all used for similar compounds—it's like watching chemistry navigate a spelling earthquake before IUPAC standards brought order to the chaos.
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