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hydrosulfide

[hahy-druh-suhl-fahyd, -fid] /ˌhaɪ drəˈsʌl faɪd, -fɪd/
noun
1.
a compound containing the univalent group –HS.
Also, hydrosulphide.
Origin
1840-1850
1840-50; hydro-2 + sulfide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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