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oxysulfide

American  
[ok-si-suhl-fahyd, -fid] / ˌɒk sɪˈsʌl faɪd, -fɪd /

noun

Chemistry.
  1. a sulfide in which part of the sulfur is replaced by oxygen.


Etymology

Origin of oxysulfide

First recorded in 1850–55; oxy- 2 + sulfide