thiosulfonic acid
noun
thio·sulfonic acid
\¦thīə+...-\
Definition of thiosulfonic acid
: any of a series of unstable acids of the general formula RSO2SH derived from sulfonic acids by replacement of oxygen by sulfur and known only in the form of salts and esters
From the M-W Editors
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Origin and Etymology of thiosulfonic acid
thiosulfonic from thi- + sulfonic
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