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hydrosulfide

or hy·dro·sul·phide

[hahy-druh-suhl-fahyd, -fid]
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noun
  1. a compound containing the univalent group –HS.
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Origin of hydrosulfide

First recorded in 1840–50; hydro-2 + sulfide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018